diff options
Diffstat (limited to 'external/libxml2_android/jni/libxml2/HTMLparser.c')
| -rw-r--r-- | external/libxml2_android/jni/libxml2/HTMLparser.c | 7165 |
1 files changed, 0 insertions, 7165 deletions
diff --git a/external/libxml2_android/jni/libxml2/HTMLparser.c b/external/libxml2_android/jni/libxml2/HTMLparser.c deleted file mode 100644 index d1395fa5..00000000 --- a/external/libxml2_android/jni/libxml2/HTMLparser.c +++ /dev/null @@ -1,7165 +0,0 @@ -/* - * HTMLparser.c : an HTML 4.0 non-verifying parser - * - * See Copyright for the status of this software. - * - * daniel@veillard.com - */ - -#define IN_LIBXML -#include "libxml.h" -#ifdef LIBXML_HTML_ENABLED - -#include <string.h> -#ifdef HAVE_CTYPE_H -#include <ctype.h> -#endif -#ifdef HAVE_STDLIB_H -#include <stdlib.h> -#endif -#ifdef HAVE_SYS_STAT_H -#include <sys/stat.h> -#endif -#ifdef HAVE_FCNTL_H -#include <fcntl.h> -#endif -#ifdef HAVE_UNISTD_H -#include <unistd.h> -#endif -#ifdef HAVE_ZLIB_H -#include <zlib.h> -#endif - -#include <libxml/xmlmemory.h> -#include <libxml/tree.h> -#include <libxml/parser.h> -#include <libxml/parserInternals.h> -#include <libxml/xmlerror.h> -#include <libxml/HTMLparser.h> -#include <libxml/HTMLtree.h> -#include <libxml/entities.h> -#include <libxml/encoding.h> -#include <libxml/valid.h> -#include <libxml/xmlIO.h> -#include <libxml/globals.h> -#include <libxml/uri.h> - -#include "buf.h" -#include "enc.h" - -#define HTML_MAX_NAMELEN 1000 -#define HTML_PARSER_BIG_BUFFER_SIZE 1000 -#define HTML_PARSER_BUFFER_SIZE 100 - -/* #define DEBUG */ -/* #define DEBUG_PUSH */ - -static int htmlOmittedDefaultValue = 1; - -xmlChar * htmlDecodeEntities(htmlParserCtxtPtr ctxt, int len, - xmlChar end, xmlChar end2, xmlChar end3); -static void htmlParseComment(htmlParserCtxtPtr ctxt); - -/************************************************************************ - * * - * Some factorized error routines * - * * - ************************************************************************/ - -/** - * htmlErrMemory: - * @ctxt: an HTML parser context - * @extra: extra informations - * - * Handle a redefinition of attribute error - */ -static void -htmlErrMemory(xmlParserCtxtPtr ctxt, const char *extra) -{ - if ((ctxt != NULL) && (ctxt->disableSAX != 0) && - (ctxt->instate == XML_PARSER_EOF)) - return; - if (ctxt != NULL) { - ctxt->errNo = XML_ERR_NO_MEMORY; - ctxt->instate = XML_PARSER_EOF; - ctxt->disableSAX = 1; - } - if (extra) - __xmlRaiseError(NULL, NULL, NULL, ctxt, NULL, XML_FROM_PARSER, - XML_ERR_NO_MEMORY, XML_ERR_FATAL, NULL, 0, extra, - NULL, NULL, 0, 0, - "Memory allocation failed : %s\n", extra); - else - __xmlRaiseError(NULL, NULL, NULL, ctxt, NULL, XML_FROM_PARSER, - XML_ERR_NO_MEMORY, XML_ERR_FATAL, NULL, 0, NULL, - NULL, NULL, 0, 0, "Memory allocation failed\n"); -} - -/** - * htmlParseErr: - * @ctxt: an HTML parser context - * @error: the error number - * @msg: the error message - * @str1: string infor - * @str2: string infor - * - * Handle a fatal parser error, i.e. violating Well-Formedness constraints - */ -static void LIBXML_ATTR_FORMAT(3,0) -htmlParseErr(xmlParserCtxtPtr ctxt, xmlParserErrors error, - const char *msg, const xmlChar *str1, const xmlChar *str2) -{ - if ((ctxt != NULL) && (ctxt->disableSAX != 0) && - (ctxt->instate == XML_PARSER_EOF)) - return; - if (ctxt != NULL) - ctxt->errNo = error; - __xmlRaiseError(NULL, NULL, NULL, ctxt, NULL, XML_FROM_HTML, error, - XML_ERR_ERROR, NULL, 0, - (const char *) str1, (const char *) str2, - NULL, 0, 0, - msg, str1, str2); - if (ctxt != NULL) - ctxt->wellFormed = 0; -} - -/** - * htmlParseErrInt: - * @ctxt: an HTML parser context - * @error: the error number - * @msg: the error message - * @val: integer info - * - * Handle a fatal parser error, i.e. violating Well-Formedness constraints - */ -static void LIBXML_ATTR_FORMAT(3,0) -htmlParseErrInt(xmlParserCtxtPtr ctxt, xmlParserErrors error, - const char *msg, int val) -{ - if ((ctxt != NULL) && (ctxt->disableSAX != 0) && - (ctxt->instate == XML_PARSER_EOF)) - return; - if (ctxt != NULL) - ctxt->errNo = error; - __xmlRaiseError(NULL, NULL, NULL, ctxt, NULL, XML_FROM_HTML, error, - XML_ERR_ERROR, NULL, 0, NULL, NULL, - NULL, val, 0, msg, val); - if (ctxt != NULL) - ctxt->wellFormed = 0; -} - -/************************************************************************ - * * - * Parser stacks related functions and macros * - * * - ************************************************************************/ - -/** - * htmlnamePush: - * @ctxt: an HTML parser context - * @value: the element name - * - * Pushes a new element name on top of the name stack - * - * Returns 0 in case of error, the index in the stack otherwise - */ -static int -htmlnamePush(htmlParserCtxtPtr ctxt, const xmlChar * value) -{ - if ((ctxt->html < 3) && (xmlStrEqual(value, BAD_CAST "head"))) - ctxt->html = 3; - if ((ctxt->html < 10) && (xmlStrEqual(value, BAD_CAST "body"))) - ctxt->html = 10; - if (ctxt->nameNr >= ctxt->nameMax) { - ctxt->nameMax *= 2; - ctxt->nameTab = (const xmlChar * *) - xmlRealloc((xmlChar * *)ctxt->nameTab, - ctxt->nameMax * - sizeof(ctxt->nameTab[0])); - if (ctxt->nameTab == NULL) { - htmlErrMemory(ctxt, NULL); - return (0); - } - } - ctxt->nameTab[ctxt->nameNr] = value; - ctxt->name = value; - return (ctxt->nameNr++); -} -/** - * htmlnamePop: - * @ctxt: an HTML parser context - * - * Pops the top element name from the name stack - * - * Returns the name just removed - */ -static const xmlChar * -htmlnamePop(htmlParserCtxtPtr ctxt) -{ - const xmlChar *ret; - - if (ctxt->nameNr <= 0) - return (NULL); - ctxt->nameNr--; - if (ctxt->nameNr < 0) - return (NULL); - if (ctxt->nameNr > 0) - ctxt->name = ctxt->nameTab[ctxt->nameNr - 1]; - else - ctxt->name = NULL; - ret = ctxt->nameTab[ctxt->nameNr]; - ctxt->nameTab[ctxt->nameNr] = NULL; - return (ret); -} - -/** - * htmlNodeInfoPush: - * @ctxt: an HTML parser context - * @value: the node info - * - * Pushes a new element name on top of the node info stack - * - * Returns 0 in case of error, the index in the stack otherwise - */ -static int -htmlNodeInfoPush(htmlParserCtxtPtr ctxt, htmlParserNodeInfo *value) -{ - if (ctxt->nodeInfoNr >= ctxt->nodeInfoMax) { - if (ctxt->nodeInfoMax == 0) - ctxt->nodeInfoMax = 5; - ctxt->nodeInfoMax *= 2; - ctxt->nodeInfoTab = (htmlParserNodeInfo *) - xmlRealloc((htmlParserNodeInfo *)ctxt->nodeInfoTab, - ctxt->nodeInfoMax * - sizeof(ctxt->nodeInfoTab[0])); - if (ctxt->nodeInfoTab == NULL) { - htmlErrMemory(ctxt, NULL); - return (0); - } - } - ctxt->nodeInfoTab[ctxt->nodeInfoNr] = *value; - ctxt->nodeInfo = &ctxt->nodeInfoTab[ctxt->nodeInfoNr]; - return (ctxt->nodeInfoNr++); -} - -/** - * htmlNodeInfoPop: - * @ctxt: an HTML parser context - * - * Pops the top element name from the node info stack - * - * Returns 0 in case of error, the pointer to NodeInfo otherwise - */ -static htmlParserNodeInfo * -htmlNodeInfoPop(htmlParserCtxtPtr ctxt) -{ - if (ctxt->nodeInfoNr <= 0) - return (NULL); - ctxt->nodeInfoNr--; - if (ctxt->nodeInfoNr < 0) - return (NULL); - if (ctxt->nodeInfoNr > 0) - ctxt->nodeInfo = &ctxt->nodeInfoTab[ctxt->nodeInfoNr - 1]; - else - ctxt->nodeInfo = NULL; - return &ctxt->nodeInfoTab[ctxt->nodeInfoNr]; -} - -/* - * Macros for accessing the content. Those should be used only by the parser, - * and not exported. - * - * Dirty macros, i.e. one need to make assumption on the context to use them - * - * CUR_PTR return the current pointer to the xmlChar to be parsed. - * CUR returns the current xmlChar value, i.e. a 8 bit value if compiled - * in ISO-Latin or UTF-8, and the current 16 bit value if compiled - * in UNICODE mode. This should be used internally by the parser - * only to compare to ASCII values otherwise it would break when - * running with UTF-8 encoding. - * NXT(n) returns the n'th next xmlChar. Same as CUR is should be used only - * to compare on ASCII based substring. - * UPP(n) returns the n'th next xmlChar converted to uppercase. Same as CUR - * it should be used only to compare on ASCII based substring. - * SKIP(n) Skip n xmlChar, and must also be used only to skip ASCII defined - * strings without newlines within the parser. - * - * Clean macros, not dependent of an ASCII context, expect UTF-8 encoding - * - * CURRENT Returns the current char value, with the full decoding of - * UTF-8 if we are using this mode. It returns an int. - * NEXT Skip to the next character, this does the proper decoding - * in UTF-8 mode. It also pop-up unfinished entities on the fly. - * NEXTL(l) Skip the current unicode character of l xmlChars long. - * COPY(to) copy one char to *to, increment CUR_PTR and to accordingly - */ - -#define UPPER (toupper(*ctxt->input->cur)) - -#define SKIP(val) ctxt->nbChars += (val),ctxt->input->cur += (val),ctxt->input->col+=(val) - -#define NXT(val) ctxt->input->cur[(val)] - -#define UPP(val) (toupper(ctxt->input->cur[(val)])) - -#define CUR_PTR ctxt->input->cur -#define BASE_PTR ctxt->input->base - -#define SHRINK if ((ctxt->input->cur - ctxt->input->base > 2 * INPUT_CHUNK) && \ - (ctxt->input->end - ctxt->input->cur < 2 * INPUT_CHUNK)) \ - xmlParserInputShrink(ctxt->input) - -#define GROW if ((ctxt->progressive == 0) && \ - (ctxt->input->end - ctxt->input->cur < INPUT_CHUNK)) \ - xmlParserInputGrow(ctxt->input, INPUT_CHUNK) - -#define CURRENT ((int) (*ctxt->input->cur)) - -#define SKIP_BLANKS htmlSkipBlankChars(ctxt) - -/* Inported from XML */ - -/* #define CUR (ctxt->token ? ctxt->token : (int) (*ctxt->input->cur)) */ -#define CUR ((int) (*ctxt->input->cur)) -#define NEXT xmlNextChar(ctxt) - -#define RAW (ctxt->token ? -1 : (*ctxt->input->cur)) - - -#define NEXTL(l) do { \ - if (*(ctxt->input->cur) == '\n') { \ - ctxt->input->line++; ctxt->input->col = 1; \ - } else ctxt->input->col++; \ - ctxt->token = 0; ctxt->input->cur += l; ctxt->nbChars++; \ - } while (0) - -/************ - \ - if (*ctxt->input->cur == '%') xmlParserHandlePEReference(ctxt); \ - if (*ctxt->input->cur == '&') xmlParserHandleReference(ctxt); - ************/ - -#define CUR_CHAR(l) htmlCurrentChar(ctxt, &l) -#define CUR_SCHAR(s, l) xmlStringCurrentChar(ctxt, s, &l) - -#define COPY_BUF(l,b,i,v) \ - if (l == 1) b[i++] = (xmlChar) v; \ - else i += xmlCopyChar(l,&b[i],v) - -/** - * htmlFindEncoding: - * @the HTML parser context - * - * Ty to find and encoding in the current data available in the input - * buffer this is needed to try to switch to the proper encoding when - * one face a character error. - * That's an heuristic, since it's operating outside of parsing it could - * try to use a meta which had been commented out, that's the reason it - * should only be used in case of error, not as a default. - * - * Returns an encoding string or NULL if not found, the string need to - * be freed - */ -static xmlChar * -htmlFindEncoding(xmlParserCtxtPtr ctxt) { - const xmlChar *start, *cur, *end; - - if ((ctxt == NULL) || (ctxt->input == NULL) || - (ctxt->input->encoding != NULL) || (ctxt->input->buf == NULL) || - (ctxt->input->buf->encoder != NULL)) - return(NULL); - if ((ctxt->input->cur == NULL) || (ctxt->input->end == NULL)) - return(NULL); - - start = ctxt->input->cur; - end = ctxt->input->end; - /* we also expect the input buffer to be zero terminated */ - if (*end != 0) - return(NULL); - - cur = xmlStrcasestr(start, BAD_CAST "HTTP-EQUIV"); - if (cur == NULL) - return(NULL); - cur = xmlStrcasestr(cur, BAD_CAST "CONTENT"); - if (cur == NULL) - return(NULL); - cur = xmlStrcasestr(cur, BAD_CAST "CHARSET="); - if (cur == NULL) - return(NULL); - cur += 8; - start = cur; - while (((*cur >= 'A') && (*cur <= 'Z')) || - ((*cur >= 'a') && (*cur <= 'z')) || - ((*cur >= '0') && (*cur <= '9')) || - (*cur == '-') || (*cur == '_') || (*cur == ':') || (*cur == '/')) - cur++; - if (cur == start) - return(NULL); - return(xmlStrndup(start, cur - start)); -} - -/** - * htmlCurrentChar: - * @ctxt: the HTML parser context - * @len: pointer to the length of the char read - * - * The current char value, if using UTF-8 this may actually span multiple - * bytes in the input buffer. Implement the end of line normalization: - * 2.11 End-of-Line Handling - * If the encoding is unspecified, in the case we find an ISO-Latin-1 - * char, then the encoding converter is plugged in automatically. - * - * Returns the current char value and its length - */ - -static int -htmlCurrentChar(xmlParserCtxtPtr ctxt, int *len) { - if (ctxt->instate == XML_PARSER_EOF) - return(0); - - if (ctxt->token != 0) { - *len = 0; - return(ctxt->token); - } - if (ctxt->charset == XML_CHAR_ENCODING_UTF8) { - /* - * We are supposed to handle UTF8, check it's valid - * From rfc2044: encoding of the Unicode values on UTF-8: - * - * UCS-4 range (hex.) UTF-8 octet sequence (binary) - * 0000 0000-0000 007F 0xxxxxxx - * 0000 0080-0000 07FF 110xxxxx 10xxxxxx - * 0000 0800-0000 FFFF 1110xxxx 10xxxxxx 10xxxxxx - * - * Check for the 0x110000 limit too - */ - const unsigned char *cur = ctxt->input->cur; - unsigned char c; - unsigned int val; - - c = *cur; - if (c & 0x80) { - if (cur[1] == 0) { - xmlParserInputGrow(ctxt->input, INPUT_CHUNK); - cur = ctxt->input->cur; - } - if ((cur[1] & 0xc0) != 0x80) - goto encoding_error; - if ((c & 0xe0) == 0xe0) { - - if (cur[2] == 0) { - xmlParserInputGrow(ctxt->input, INPUT_CHUNK); - cur = ctxt->input->cur; - } - if ((cur[2] & 0xc0) != 0x80) - goto encoding_error; - if ((c & 0xf0) == 0xf0) { - if (cur[3] == 0) { - xmlParserInputGrow(ctxt->input, INPUT_CHUNK); - cur = ctxt->input->cur; - } - if (((c & 0xf8) != 0xf0) || - ((cur[3] & 0xc0) != 0x80)) - goto encoding_error; - /* 4-byte code */ - *len = 4; - val = (cur[0] & 0x7) << 18; - val |= (cur[1] & 0x3f) << 12; - val |= (cur[2] & 0x3f) << 6; - val |= cur[3] & 0x3f; - } else { - /* 3-byte code */ - *len = 3; - val = (cur[0] & 0xf) << 12; - val |= (cur[1] & 0x3f) << 6; - val |= cur[2] & 0x3f; - } - } else { - /* 2-byte code */ - *len = 2; - val = (cur[0] & 0x1f) << 6; - val |= cur[1] & 0x3f; - } - if (!IS_CHAR(val)) { - htmlParseErrInt(ctxt, XML_ERR_INVALID_CHAR, - "Char 0x%X out of allowed range\n", val); - } - return(val); - } else { - if ((*ctxt->input->cur == 0) && - (ctxt->input->cur < ctxt->input->end)) { - htmlParseErrInt(ctxt, XML_ERR_INVALID_CHAR, - "Char 0x%X out of allowed range\n", 0); - *len = 1; - return(' '); - } - /* 1-byte code */ - *len = 1; - return((int) *ctxt->input->cur); - } - } - /* - * Assume it's a fixed length encoding (1) with - * a compatible encoding for the ASCII set, since - * XML constructs only use < 128 chars - */ - *len = 1; - if ((int) *ctxt->input->cur < 0x80) - return((int) *ctxt->input->cur); - - /* - * Humm this is bad, do an automatic flow conversion - */ - { - xmlChar * guess; - xmlCharEncodingHandlerPtr handler; - - guess = htmlFindEncoding(ctxt); - if (guess == NULL) { - xmlSwitchEncoding(ctxt, XML_CHAR_ENCODING_8859_1); - } else { - if (ctxt->input->encoding != NULL) - xmlFree((xmlChar *) ctxt->input->encoding); - ctxt->input->encoding = guess; - handler = xmlFindCharEncodingHandler((const char *) guess); - if (handler != NULL) { - xmlSwitchToEncoding(ctxt, handler); - } else { - htmlParseErr(ctxt, XML_ERR_INVALID_ENCODING, - "Unsupported encoding %s", guess, NULL); - } - } - ctxt->charset = XML_CHAR_ENCODING_UTF8; - } - - return(xmlCurrentChar(ctxt, len)); - -encoding_error: - /* - * If we detect an UTF8 error that probably mean that the - * input encoding didn't get properly advertized in the - * declaration header. Report the error and switch the encoding - * to ISO-Latin-1 (if you don't like this policy, just declare the - * encoding !) - */ - { - char buffer[150]; - - if (ctxt->input->end - ctxt->input->cur >= 4) { - snprintf(buffer, 149, "Bytes: 0x%02X 0x%02X 0x%02X 0x%02X\n", - ctxt->input->cur[0], ctxt->input->cur[1], - ctxt->input->cur[2], ctxt->input->cur[3]); - } else { - snprintf(buffer, 149, "Bytes: 0x%02X\n", ctxt->input->cur[0]); - } - htmlParseErr(ctxt, XML_ERR_INVALID_ENCODING, - "Input is not proper UTF-8, indicate encoding !\n", - BAD_CAST buffer, NULL); - } - - ctxt->charset = XML_CHAR_ENCODING_8859_1; - *len = 1; - return((int) *ctxt->input->cur); -} - -/** - * htmlSkipBlankChars: - * @ctxt: the HTML parser context - * - * skip all blanks character found at that point in the input streams. - * - * Returns the number of space chars skipped - */ - -static int -htmlSkipBlankChars(xmlParserCtxtPtr ctxt) { - int res = 0; - - while (IS_BLANK_CH(*(ctxt->input->cur))) { - if ((*ctxt->input->cur == 0) && - (xmlParserInputGrow(ctxt->input, INPUT_CHUNK) <= 0)) { - xmlPopInput(ctxt); - } else { - if (*(ctxt->input->cur) == '\n') { - ctxt->input->line++; ctxt->input->col = 1; - } else ctxt->input->col++; - ctxt->input->cur++; - ctxt->nbChars++; - if (*ctxt->input->cur == 0) - xmlParserInputGrow(ctxt->input, INPUT_CHUNK); - } - res++; - } - return(res); -} - - - -/************************************************************************ - * * - * The list of HTML elements and their properties * - * * - ************************************************************************/ - -/* - * Start Tag: 1 means the start tag can be ommited - * End Tag: 1 means the end tag can be ommited - * 2 means it's forbidden (empty elements) - * 3 means the tag is stylistic and should be closed easily - * Depr: this element is deprecated - * DTD: 1 means that this element is valid only in the Loose DTD - * 2 means that this element is valid only in the Frameset DTD - * - * Name,Start Tag,End Tag,Save End,Empty,Deprecated,DTD,inline,Description - , subElements , impliedsubelt , Attributes, userdata - */ - -/* Definitions and a couple of vars for HTML Elements */ - -#define FONTSTYLE "tt", "i", "b", "u", "s", "strike", "big", "small" -#define NB_FONTSTYLE 8 -#define PHRASE "em", "strong", "dfn", "code", "samp", "kbd", "var", "cite", "abbr", "acronym" -#define NB_PHRASE 10 -#define SPECIAL "a", "img", "applet", "embed", "object", "font", "basefont", "br", "script", "map", "q", "sub", "sup", "span", "bdo", "iframe" -#define NB_SPECIAL 16 -#define INLINE FONTSTYLE, PHRASE, SPECIAL, FORMCTRL -#define NB_INLINE NB_PCDATA + NB_FONTSTYLE + NB_PHRASE + NB_SPECIAL + NB_FORMCTRL -#define BLOCK HEADING, LIST, "pre", "p", "dl", "div", "center", "noscript", "noframes", "blockquote", "form", "isindex", "hr", "table", "fieldset", "address" -#define NB_BLOCK NB_HEADING + NB_LIST + 14 -#define FORMCTRL "input", "select", "textarea", "label", "button" -#define NB_FORMCTRL 5 -#define PCDATA -#define NB_PCDATA 0 -#define HEADING "h1", "h2", "h3", "h4", "h5", "h6" -#define NB_HEADING 6 -#define LIST "ul", "ol", "dir", "menu" -#define NB_LIST 4 -#define MODIFIER -#define NB_MODIFIER 0 -#define FLOW BLOCK,INLINE -#define NB_FLOW NB_BLOCK + NB_INLINE -#define EMPTY NULL - - -static const char* const html_flow[] = { FLOW, NULL } ; -static const char* const html_inline[] = { INLINE, NULL } ; - -/* placeholders: elts with content but no subelements */ -static const char* const html_pcdata[] = { NULL } ; -#define html_cdata html_pcdata - - -/* ... and for HTML Attributes */ - -#define COREATTRS "id", "class", "style", "title" -#define NB_COREATTRS 4 -#define I18N "lang", "dir" -#define NB_I18N 2 -#define EVENTS "onclick", "ondblclick", "onmousedown", "onmouseup", "onmouseover", "onmouseout", "onkeypress", "onkeydown", "onkeyup" -#define NB_EVENTS 9 -#define ATTRS COREATTRS,I18N,EVENTS -#define NB_ATTRS NB_NB_COREATTRS + NB_I18N + NB_EVENTS -#define CELLHALIGN "align", "char", "charoff" -#define NB_CELLHALIGN 3 -#define CELLVALIGN "valign" -#define NB_CELLVALIGN 1 - -static const char* const html_attrs[] = { ATTRS, NULL } ; -static const char* const core_i18n_attrs[] = { COREATTRS, I18N, NULL } ; -static const char* const core_attrs[] = { COREATTRS, NULL } ; -static const char* const i18n_attrs[] = { I18N, NULL } ; - - -/* Other declarations that should go inline ... */ -static const char* const a_attrs[] = { ATTRS, "charset", "type", "name", - "href", "hreflang", "rel", "rev", "accesskey", "shape", "coords", - "tabindex", "onfocus", "onblur", NULL } ; -static const char* const target_attr[] = { "target", NULL } ; -static const char* const rows_cols_attr[] = { "rows", "cols", NULL } ; -static const char* const alt_attr[] = { "alt", NULL } ; -static const char* const src_alt_attrs[] = { "src", "alt", NULL } ; -static const char* const href_attrs[] = { "href", NULL } ; -static const char* const clear_attrs[] = { "clear", NULL } ; -static const char* const inline_p[] = { INLINE, "p", NULL } ; - -static const char* const flow_param[] = { FLOW, "param", NULL } ; -static const char* const applet_attrs[] = { COREATTRS , "codebase", - "archive", "alt", "name", "height", "width", "align", - "hspace", "vspace", NULL } ; -static const char* const area_attrs[] = { "shape", "coords", "href", "nohref", - "tabindex", "accesskey", "onfocus", "onblur", NULL } ; -static const char* const basefont_attrs[] = - { "id", "size", "color", "face", NULL } ; -static const char* const quote_attrs[] = { ATTRS, "cite", NULL } ; -static const char* const body_contents[] = { FLOW, "ins", "del", NULL } ; -static const char* const body_attrs[] = { ATTRS, "onload", "onunload", NULL } ; -static const char* const body_depr[] = { "background", "bgcolor", "text", - "link", "vlink", "alink", NULL } ; -static const char* const button_attrs[] = { ATTRS, "name", "value", "type", - "disabled", "tabindex", "accesskey", "onfocus", "onblur", NULL } ; - - -static const char* const col_attrs[] = { ATTRS, "span", "width", CELLHALIGN, CELLVALIGN, NULL } ; -static const char* const col_elt[] = { "col", NULL } ; -static const char* const edit_attrs[] = { ATTRS, "datetime", "cite", NULL } ; -static const char* const compact_attrs[] = { ATTRS, "compact", NULL } ; -static const char* const dl_contents[] = { "dt", "dd", NULL } ; -static const char* const compact_attr[] = { "compact", NULL } ; -static const char* const label_attr[] = { "label", NULL } ; -static const char* const fieldset_contents[] = { FLOW, "legend" } ; -static const char* const font_attrs[] = { COREATTRS, I18N, "size", "color", "face" , NULL } ; -static const char* const form_contents[] = { HEADING, LIST, INLINE, "pre", "p", "div", "center", "noscript", "noframes", "blockquote", "isindex", "hr", "table", "fieldset", "address", NULL } ; -static const char* const form_attrs[] = { ATTRS, "method", "enctype", "accept", "name", "onsubmit", "onreset", "accept-charset", NULL } ; -static const char* const frame_attrs[] = { COREATTRS, "longdesc", "name", "src", "frameborder", "marginwidth", "marginheight", "noresize", "scrolling" , NULL } ; -static const char* const frameset_attrs[] = { COREATTRS, "rows", "cols", "onload", "onunload", NULL } ; -static const char* const frameset_contents[] = { "frameset", "frame", "noframes", NULL } ; -static const char* const head_attrs[] = { I18N, "profile", NULL } ; -static const char* const head_contents[] = { "title", "isindex", "base", "script", "style", "meta", "link", "object", NULL } ; -static const char* const hr_depr[] = { "align", "noshade", "size", "width", NULL } ; -static const char* const version_attr[] = { "version", NULL } ; -static const char* const html_content[] = { "head", "body", "frameset", NULL } ; -static const char* const iframe_attrs[] = { COREATTRS, "longdesc", "name", "src", "frameborder", "marginwidth", "marginheight", "scrolling", "align", "height", "width", NULL } ; -static const char* const img_attrs[] = { ATTRS, "longdesc", "name", "height", "width", "usemap", "ismap", NULL } ; -static const char* const embed_attrs[] = { COREATTRS, "align", "alt", "border", "code", "codebase", "frameborder", "height", "hidden", "hspace", "name", "palette", "pluginspace", "pluginurl", "src", "type", "units", "vspace", "width", NULL } ; -static const char* const input_attrs[] = { ATTRS, "type", "name", "value", "checked", "disabled", "readonly", "size", "maxlength", "src", "alt", "usemap", "ismap", "tabindex", "accesskey", "onfocus", "onblur", "onselect", "onchange", "accept", NULL } ; -static const char* const prompt_attrs[] = { COREATTRS, I18N, "prompt", NULL } ; -static const char* const label_attrs[] = { ATTRS, "for", "accesskey", "onfocus", "onblur", NULL } ; -static const char* const legend_attrs[] = { ATTRS, "accesskey", NULL } ; -static const char* const align_attr[] = { "align", NULL } ; -static const char* const link_attrs[] = { ATTRS, "charset", "href", "hreflang", "type", "rel", "rev", "media", NULL } ; -static const char* const map_contents[] = { BLOCK, "area", NULL } ; -static const char* const name_attr[] = { "name", NULL } ; -static const char* const action_attr[] = { "action", NULL } ; -static const char* const blockli_elt[] = { BLOCK, "li", NULL } ; -static const char* const meta_attrs[] = { I18N, "http-equiv", "name", "scheme", "charset", NULL } ; -static const char* const content_attr[] = { "content", NULL } ; -static const char* const type_attr[] = { "type", NULL } ; -static const char* const noframes_content[] = { "body", FLOW MODIFIER, NULL } ; -static const char* const object_contents[] = { FLOW, "param", NULL } ; -static const char* const object_attrs[] = { ATTRS, "declare", "classid", "codebase", "data", "type", "codetype", "archive", "standby", "height", "width", "usemap", "name", "tabindex", NULL } ; -static const char* const object_depr[] = { "align", "border", "hspace", "vspace", NULL } ; -static const char* const ol_attrs[] = { "type", "compact", "start", NULL} ; -static const char* const option_elt[] = { "option", NULL } ; -static const char* const optgroup_attrs[] = { ATTRS, "disabled", NULL } ; -static const char* const option_attrs[] = { ATTRS, "disabled", "label", "selected", "value", NULL } ; -static const char* const param_attrs[] = { "id", "value", "valuetype", "type", NULL } ; -static const char* const width_attr[] = { "width", NULL } ; -static const char* const pre_content[] = { PHRASE, "tt", "i", "b", "u", "s", "strike", "a", "br", "script", "map", "q", "span", "bdo", "iframe", NULL } ; -static const char* const script_attrs[] = { "charset", "src", "defer", "event", "for", NULL } ; -static const char* const language_attr[] = { "language", NULL } ; -static const char* const select_content[] = { "optgroup", "option", NULL } ; -static const char* const select_attrs[] = { ATTRS, "name", "size", "multiple", "disabled", "tabindex", "onfocus", "onblur", "onchange", NULL } ; -static const char* const style_attrs[] = { I18N, "media", "title", NULL } ; -static const char* const table_attrs[] = { ATTRS, "summary", "width", "border", "frame", "rules", "cellspacing", "cellpadding", "datapagesize", NULL } ; -static const char* const table_depr[] = { "align", "bgcolor", NULL } ; -static const char* const table_contents[] = { "caption", "col", "colgroup", "thead", "tfoot", "tbody", "tr", NULL} ; -static const char* const tr_elt[] = { "tr", NULL } ; -static const char* const talign_attrs[] = { ATTRS, CELLHALIGN, CELLVALIGN, NULL} ; -static const char* const th_td_depr[] = { "nowrap", "bgcolor", "width", "height", NULL } ; -static const char* const th_td_attr[] = { ATTRS, "abbr", "axis", "headers", "scope", "rowspan", "colspan", CELLHALIGN, CELLVALIGN, NULL } ; -static const char* const textarea_attrs[] = { ATTRS, "name", "disabled", "readonly", "tabindex", "accesskey", "onfocus", "onblur", "onselect", "onchange", NULL } ; -static const char* const tr_contents[] = { "th", "td", NULL } ; -static const char* const bgcolor_attr[] = { "bgcolor", NULL } ; -static const char* const li_elt[] = { "li", NULL } ; -static const char* const ul_depr[] = { "type", "compact", NULL} ; -static const char* const dir_attr[] = { "dir", NULL} ; - -#define DECL (const char**) - -static const htmlElemDesc -html40ElementTable[] = { -{ "a", 0, 0, 0, 0, 0, 0, 1, "anchor ", - DECL html_inline , NULL , DECL a_attrs , DECL target_attr, NULL -}, -{ "abbr", 0, 0, 0, 0, 0, 0, 1, "abbreviated form", - DECL html_inline , NULL , DECL html_attrs, NULL, NULL -}, -{ "acronym", 0, 0, 0, 0, 0, 0, 1, "", - DECL html_inline , NULL , DECL html_attrs, NULL, NULL -}, -{ "address", 0, 0, 0, 0, 0, 0, 0, "information on author ", - DECL inline_p , NULL , DECL html_attrs, NULL, NULL -}, -{ "applet", 0, 0, 0, 0, 1, 1, 2, "java applet ", - DECL flow_param , NULL , NULL , DECL applet_attrs, NULL -}, -{ "area", 0, 2, 2, 1, 0, 0, 0, "client-side image map area ", - EMPTY , NULL , DECL area_attrs , DECL target_attr, DECL alt_attr -}, -{ "b", 0, 3, 0, 0, 0, 0, 1, "bold text style", - DECL html_inline , NULL , DECL html_attrs, NULL, NULL -}, -{ "base", 0, 2, 2, 1, 0, 0, 0, "document base uri ", - EMPTY , NULL , NULL , DECL target_attr, DECL href_attrs -}, -{ "basefont", 0, 2, 2, 1, 1, 1, 1, "base font size " , - EMPTY , NULL , NULL, DECL basefont_attrs, NULL -}, -{ "bdo", 0, 0, 0, 0, 0, 0, 1, "i18n bidi over-ride ", - DECL html_inline , NULL , DECL core_i18n_attrs, NULL, DECL dir_attr -}, -{ "big", 0, 3, 0, 0, 0, 0, 1, "large text style", - DECL html_inline , NULL , DECL html_attrs, NULL, NULL -}, -{ "blockquote", 0, 0, 0, 0, 0, 0, 0, "long quotation ", - DECL html_flow , NULL , DECL quote_attrs , NULL, NULL -}, -{ "body", 1, 1, 0, 0, 0, 0, 0, "document body ", - DECL body_contents , "div" , DECL body_attrs, DECL body_depr, NULL -}, -{ "br", 0, 2, 2, 1, 0, 0, 1, "forced line break ", - EMPTY , NULL , DECL core_attrs, DECL clear_attrs , NULL -}, -{ "button", 0, 0, 0, 0, 0, 0, 2, "push button ", - DECL html_flow MODIFIER , NULL , DECL button_attrs, NULL, NULL -}, -{ "caption", 0, 0, 0, 0, 0, 0, 0, "table caption ", - DECL html_inline , NULL , DECL html_attrs, NULL, NULL -}, -{ "center", 0, 3, 0, 0, 1, 1, 0, "shorthand for div align=center ", - DECL html_flow , NULL , NULL, DECL html_attrs, NULL -}, -{ "cite", 0, 0, 0, 0, 0, 0, 1, "citation", - DECL html_inline , NULL , DECL html_attrs, NULL, NULL -}, -{ "code", 0, 0, 0, 0, 0, 0, 1, "computer code fragment", - DECL html_inline , NULL , DECL html_attrs, NULL, NULL -}, -{ "col", 0, 2, 2, 1, 0, 0, 0, "table column ", - EMPTY , NULL , DECL col_attrs , NULL, NULL -}, -{ "colgroup", 0, 1, 0, 0, 0, 0, 0, "table column group ", - DECL col_elt , "col" , DECL col_attrs , NULL, NULL -}, -{ "dd", 0, 1, 0, 0, 0, 0, 0, "definition description ", - DECL html_flow , NULL , DECL html_attrs, NULL, NULL -}, -{ "del", 0, 0, 0, 0, 0, 0, 2, "deleted text ", - DECL html_flow , NULL , DECL edit_attrs , NULL, NULL -}, -{ "dfn", 0, 0, 0, 0, 0, 0, 1, "instance definition", - DECL html_inline , NULL , DECL html_attrs, NULL, NULL -}, -{ "dir", 0, 0, 0, 0, 1, 1, 0, "directory list", - DECL blockli_elt, "li" , NULL, DECL compact_attrs, NULL -}, -{ "div", 0, 0, 0, 0, 0, 0, 0, "generic language/style container", - DECL html_flow, NULL, DECL html_attrs, DECL align_attr, NULL -}, -{ "dl", 0, 0, 0, 0, 0, 0, 0, "definition list ", - DECL dl_contents , "dd" , DECL html_attrs, DECL compact_attr, NULL -}, -{ "dt", 0, 1, 0, 0, 0, 0, 0, "definition term ", - DECL html_inline, NULL, DECL html_attrs, NULL, NULL -}, -{ "em", 0, 3, 0, 0, 0, 0, 1, "emphasis", - DECL html_inline, NULL, DECL html_attrs, NULL, NULL -}, -{ "embed", 0, 1, 0, 0, 1, 1, 1, "generic embedded object ", - EMPTY, NULL, DECL embed_attrs, NULL, NULL -}, -{ "fieldset", 0, 0, 0, 0, 0, 0, 0, "form control group ", - DECL fieldset_contents , NULL, DECL html_attrs, NULL, NULL -}, -{ "font", 0, 3, 0, 0, 1, 1, 1, "local change to font ", - DECL html_inline, NULL, NULL, DECL font_attrs, NULL -}, -{ "form", 0, 0, 0, 0, 0, 0, 0, "interactive form ", - DECL form_contents, "fieldset", DECL form_attrs , DECL target_attr, DECL action_attr -}, -{ "frame", 0, 2, 2, 1, 0, 2, 0, "subwindow " , - EMPTY, NULL, NULL, DECL frame_attrs, NULL -}, -{ "frameset", 0, 0, 0, 0, 0, 2, 0, "window subdivision" , - DECL frameset_contents, "noframes" , NULL , DECL frameset_attrs, NULL -}, -{ "h1", 0, 0, 0, 0, 0, 0, 0, "heading ", - DECL html_inline, NULL, DECL html_attrs, DECL align_attr, NULL -}, -{ "h2", 0, 0, 0, 0, 0, 0, 0, "heading ", - DECL html_inline, NULL, DECL html_attrs, DECL align_attr, NULL -}, -{ "h3", 0, 0, 0, 0, 0, 0, 0, "heading ", - DECL html_inline, NULL, DECL html_attrs, DECL align_attr, NULL -}, -{ "h4", 0, 0, 0, 0, 0, 0, 0, "heading ", - DECL html_inline, NULL, DECL html_attrs, DECL align_attr, NULL -}, -{ "h5", 0, 0, 0, 0, 0, 0, 0, "heading ", - DECL html_inline, NULL, DECL html_attrs, DECL align_attr, NULL -}, -{ "h6", 0, 0, 0, 0, 0, 0, 0, "heading ", - DECL html_inline, NULL, DECL html_attrs, DECL align_attr, NULL -}, -{ "head", 1, 1, 0, 0, 0, 0, 0, "document head ", - DECL head_contents, NULL, DECL head_attrs, NULL, NULL -}, -{ "hr", 0, 2, 2, 1, 0, 0, 0, "horizontal rule " , - EMPTY, NULL, DECL html_attrs, DECL hr_depr, NULL -}, -{ "html", 1, 1, 0, 0, 0, 0, 0, "document root element ", - DECL html_content , NULL , DECL i18n_attrs, DECL version_attr, NULL -}, -{ "i", 0, 3, 0, 0, 0, 0, 1, "italic text style", - DECL html_inline, NULL, DECL html_attrs, NULL, NULL -}, -{ "iframe", 0, 0, 0, 0, 0, 1, 2, "inline subwindow ", - DECL html_flow, NULL, NULL, DECL iframe_attrs, NULL -}, -{ "img", 0, 2, 2, 1, 0, 0, 1, "embedded image ", - EMPTY, NULL, DECL img_attrs, DECL align_attr, DECL src_alt_attrs -}, -{ "input", 0, 2, 2, 1, 0, 0, 1, "form control ", - EMPTY, NULL, DECL input_attrs , DECL align_attr, NULL -}, -{ "ins", 0, 0, 0, 0, 0, 0, 2, "inserted text", - DECL html_flow, NULL, DECL edit_attrs, NULL, NULL -}, -{ "isindex", 0, 2, 2, 1, 1, 1, 0, "single line prompt ", - EMPTY, NULL, NULL, DECL prompt_attrs, NULL -}, -{ "kbd", 0, 0, 0, 0, 0, 0, 1, "text to be entered by the user", - DECL html_inline, NULL, DECL html_attrs, NULL, NULL -}, -{ "label", 0, 0, 0, 0, 0, 0, 1, "form field label text ", - DECL html_inline MODIFIER, NULL, DECL label_attrs , NULL, NULL -}, -{ "legend", 0, 0, 0, 0, 0, 0, 0, "fieldset legend ", - DECL html_inline, NULL, DECL legend_attrs , DECL align_attr, NULL -}, -{ "li", 0, 1, 1, 0, 0, 0, 0, "list item ", - DECL html_flow, NULL, DECL html_attrs, NULL, NULL -}, -{ "link", 0, 2, 2, 1, 0, 0, 0, "a media-independent link ", - EMPTY, NULL, DECL link_attrs, DECL target_attr, NULL -}, -{ "map", 0, 0, 0, 0, 0, 0, 2, "client-side image map ", - DECL map_contents , NULL, DECL html_attrs , NULL, DECL name_attr -}, -{ "menu", 0, 0, 0, 0, 1, 1, 0, "menu list ", - DECL blockli_elt , NULL, NULL, DECL compact_attrs, NULL -}, -{ "meta", 0, 2, 2, 1, 0, 0, 0, "generic metainformation ", - EMPTY, NULL, DECL meta_attrs , NULL , DECL content_attr -}, -{ "noframes", 0, 0, 0, 0, 0, 2, 0, "alternate content container for non frame-based rendering ", - DECL noframes_content, "body" , DECL html_attrs, NULL, NULL -}, -{ "noscript", 0, 0, 0, 0, 0, 0, 0, "alternate content container for non script-based rendering ", - DECL html_flow, "div", DECL html_attrs, NULL, NULL -}, -{ "object", 0, 0, 0, 0, 0, 0, 2, "generic embedded object ", - DECL object_contents , "div" , DECL object_attrs, DECL object_depr, NULL -}, -{ "ol", 0, 0, 0, 0, 0, 0, 0, "ordered list ", - DECL li_elt , "li" , DECL html_attrs, DECL ol_attrs, NULL -}, -{ "optgroup", 0, 0, 0, 0, 0, 0, 0, "option group ", - DECL option_elt , "option", DECL optgroup_attrs, NULL, DECL label_attr -}, -{ "option", 0, 1, 0, 0, 0, 0, 0, "selectable choice " , - DECL html_pcdata, NULL, DECL option_attrs, NULL, NULL -}, -{ "p", 0, 1, 0, 0, 0, 0, 0, "paragraph ", - DECL html_inline, NULL, DECL html_attrs, DECL align_attr, NULL -}, -{ "param", 0, 2, 2, 1, 0, 0, 0, "named property value ", - EMPTY, NULL, DECL param_attrs, NULL, DECL name_attr -}, -{ "pre", 0, 0, 0, 0, 0, 0, 0, "preformatted text ", - DECL pre_content, NULL, DECL html_attrs, DECL width_attr, NULL -}, -{ "q", 0, 0, 0, 0, 0, 0, 1, "short inline quotation ", - DECL html_inline, NULL, DECL quote_attrs, NULL, NULL -}, -{ "s", 0, 3, 0, 0, 1, 1, 1, "strike-through text style", - DECL html_inline, NULL, NULL, DECL html_attrs, NULL -}, -{ "samp", 0, 0, 0, 0, 0, 0, 1, "sample program output, scripts, etc.", - DECL html_inline, NULL, DECL html_attrs, NULL, NULL -}, -{ "script", 0, 0, 0, 0, 0, 0, 2, "script statements ", - DECL html_cdata, NULL, DECL script_attrs, DECL language_attr, DECL type_attr -}, -{ "select", 0, 0, 0, 0, 0, 0, 1, "option selector ", - DECL select_content, NULL, DECL select_attrs, NULL, NULL -}, -{ "small", 0, 3, 0, 0, 0, 0, 1, "small text style", - DECL html_inline, NULL, DECL html_attrs, NULL, NULL -}, -{ "span", 0, 0, 0, 0, 0, 0, 1, "generic language/style container ", - DECL html_inline, NULL, DECL html_attrs, NULL, NULL -}, -{ "strike", 0, 3, 0, 0, 1, 1, 1, "strike-through text", - DECL html_inline, NULL, NULL, DECL html_attrs, NULL -}, -{ "strong", 0, 3, 0, 0, 0, 0, 1, "strong emphasis", - DECL html_inline, NULL, DECL html_attrs, NULL, NULL -}, -{ "style", 0, 0, 0, 0, 0, 0, 0, "style info ", - DECL html_cdata, NULL, DECL style_attrs, NULL, DECL type_attr -}, -{ "sub", 0, 3, 0, 0, 0, 0, 1, "subscript", - DECL html_inline, NULL, DECL html_attrs, NULL, NULL -}, -{ "sup", 0, 3, 0, 0, 0, 0, 1, "superscript ", - DECL html_inline, NULL, DECL html_attrs, NULL, NULL -}, -{ "table", 0, 0, 0, 0, 0, 0, 0, "", - DECL table_contents , "tr" , DECL table_attrs , DECL table_depr, NULL -}, -{ "tbody", 1, 0, 0, 0, 0, 0, 0, "table body ", - DECL tr_elt , "tr" , DECL talign_attrs, NULL, NULL -}, -{ "td", 0, 0, 0, 0, 0, 0, 0, "table data cell", - DECL html_flow, NULL, DECL th_td_attr, DECL th_td_depr, NULL -}, -{ "textarea", 0, 0, 0, 0, 0, 0, 1, "multi-line text field ", - DECL html_pcdata, NULL, DECL textarea_attrs, NULL, DECL rows_cols_attr -}, -{ "tfoot", 0, 1, 0, 0, 0, 0, 0, "table footer ", - DECL tr_elt , "tr" , DECL talign_attrs, NULL, NULL -}, -{ "th", 0, 1, 0, 0, 0, 0, 0, "table header cell", - DECL html_flow, NULL, DECL th_td_attr, DECL th_td_depr, NULL -}, -{ "thead", 0, 1, 0, 0, 0, 0, 0, "table header ", - DECL tr_elt , "tr" , DECL talign_attrs, NULL, NULL -}, -{ "title", 0, 0, 0, 0, 0, 0, 0, "document title ", - DECL html_pcdata, NULL, DECL i18n_attrs, NULL, NULL -}, -{ "tr", 0, 0, 0, 0, 0, 0, 0, "table row ", - DECL tr_contents , "td" , DECL talign_attrs, DECL bgcolor_attr, NULL -}, -{ "tt", 0, 3, 0, 0, 0, 0, 1, "teletype or monospaced text style", - DECL html_inline, NULL, DECL html_attrs, NULL, NULL -}, -{ "u", 0, 3, 0, 0, 1, 1, 1, "underlined text style", - DECL html_inline, NULL, NULL, DECL html_attrs, NULL -}, -{ "ul", 0, 0, 0, 0, 0, 0, 0, "unordered list ", - DECL li_elt , "li" , DECL html_attrs, DECL ul_depr, NULL -}, -{ "var", 0, 0, 0, 0, 0, 0, 1, "instance of a variable or program argument", - DECL html_inline, NULL, DECL html_attrs, NULL, NULL -} -}; - -/* - * start tags that imply the end of current element - */ -static const char * const htmlStartClose[] = { -"form", "form", "p", "hr", "h1", "h2", "h3", "h4", "h5", "h6", - "dl", "ul", "ol", "menu", "dir", "address", "pre", - "listing", "xmp", "head", NULL, -"head", "p", NULL, -"title", "p", NULL, -"body", "head", "style", "link", "title", "p", NULL, -"frameset", "head", "style", "link", "title", "p", NULL, -"li", "p", "h1", "h2", "h3", "h4", "h5", "h6", "dl", "address", - "pre", "listing", "xmp", "head", "li", NULL, -"hr", "p", "head", NULL, -"h1", "p", "head", NULL, -"h2", "p", "head", NULL, -"h3", "p", "head", NULL, -"h4", "p", "head", NULL, -"h5", "p", "head", NULL, -"h6", "p", "head", NULL, -"dir", "p", "head", NULL, -"address", "p", "head", "ul", NULL, -"pre", "p", "head", "ul", NULL, -"listing", "p", "head", NULL, -"xmp", "p", "head", NULL, -"blockquote", "p", "head", NULL, -"dl", "p", "dt", "menu", "dir", "address", "pre", "listing", - "xmp", "head", NULL, -"dt", "p", "menu", "dir", "address", "pre", "listing", "xmp", - "head", "dd", NULL, -"dd", "p", "menu", "dir", "address", "pre", "listing", "xmp", - "head", "dt", NULL, -"ul", "p", "head", "ol", "menu", "dir", "address", "pre", - "listing", "xmp", NULL, -"ol", "p", "head", "ul", NULL, -"menu", "p", "head", "ul", NULL, -"p", "p", "head", "h1", "h2", "h3", "h4", "h5", "h6", FONTSTYLE, NULL, -"div", "p", "head", NULL, -"noscript", "p", NULL, -"center", "font", "b", "i", "p", "head", NULL, -"a", "a", "head", NULL, -"caption", "p", NULL, -"colgroup", "caption", "colgroup", "col", "p", NULL, -"col", "caption", "col", "p", NULL, -"table", "p", "head", "h1", "h2", "h3", "h4", "h5", "h6", "pre", - "listing", "xmp", "a", NULL, -"th", "th", "td", "p", "span", "font", "a", "b", "i", "u", NULL, -"td", "th", "td", "p", "span", "font", "a", "b", "i", "u", NULL, -"tr", "th", "td", "tr", "caption", "col", "colgroup", "p", NULL, -"thead", "caption", "col", "colgroup", NULL, -"tfoot", "th", "td", "tr", "caption", "col", "colgroup", "thead", - "tbody", "p", NULL, -"tbody", "th", "td", "tr", "caption", "col", "colgroup", "thead", - "tfoot", "tbody", "p", NULL, -"optgroup", "option", NULL, -"option", "option", NULL, -"fieldset", "legend", "p", "head", "h1", "h2", "h3", "h4", "h5", "h6", - "pre", "listing", "xmp", "a", NULL, -/* most tags in in FONTSTYLE, PHRASE and SPECIAL should close <head> */ -"tt", "head", NULL, -"i", "head", NULL, -"b", "head", NULL, -"u", "head", NULL, -"s", "head", NULL, -"strike", "head", NULL, -"big", "head", NULL, -"small", "head", NULL, - -"em", "head", NULL, -"strong", "head", NULL, -"dfn", "head", NULL, -"code", "head", NULL, -"samp", "head", NULL, -"kbd", "head", NULL, -"var", "head", NULL, -"cite", "head", NULL, -"abbr", "head", NULL, -"acronym", "head", NULL, - -/* "a" */ -"img", "head", NULL, -/* "applet" */ -/* "embed" */ -/* "object" */ -"font", "head", NULL, -/* "basefont" */ -"br", "head", NULL, -/* "script" */ -"map", "head", NULL, -"q", "head", NULL, -"sub", "head", NULL, -"sup", "head", NULL, -"span", "head", NULL, -"bdo", "head", NULL, -"iframe", "head", NULL, -NULL -}; - -/* - * The list of HTML elements which are supposed not to have - * CDATA content and where a p element will be implied - * - * TODO: extend that list by reading the HTML SGML DTD on - * implied paragraph - */ -static const char *const htmlNoContentElements[] = { - "html", - "head", - NULL -}; - -/* - * The list of HTML attributes which are of content %Script; - * NOTE: when adding ones, check htmlIsScriptAttribute() since - * it assumes the name starts with 'on' - */ -static const char *const htmlScriptAttributes[] = { - "onclick", - "ondblclick", - "onmousedown", - "onmouseup", - "onmouseover", - "onmousemove", - "onmouseout", - "onkeypress", - "onkeydown", - "onkeyup", - "onload", - "onunload", - "onfocus", - "onblur", - "onsubmit", - "onreset", - "onchange", - "onselect" -}; - -/* - * This table is used by the htmlparser to know what to do with - * broken html pages. By assigning different priorities to different - * elements the parser can decide how to handle extra endtags. - * Endtags are only allowed to close elements with lower or equal - * priority. - */ - -typedef struct { - const char *name; - int priority; -} elementPriority; - -static const elementPriority htmlEndPriority[] = { - {"div", 150}, - {"td", 160}, - {"th", 160}, - {"tr", 170}, - {"thead", 180}, - {"tbody", 180}, - {"tfoot", 180}, - {"table", 190}, - {"head", 200}, - {"body", 200}, - {"html", 220}, - {NULL, 100} /* Default priority */ -}; - -static const char** htmlStartCloseIndex[100]; -static int htmlStartCloseIndexinitialized = 0; - -/************************************************************************ - * * - * functions to handle HTML specific data * - * * - ************************************************************************/ - -/** - * htmlInitAutoClose: - * - * Initialize the htmlStartCloseIndex for fast lookup of closing tags names. - * This is not reentrant. Call xmlInitParser() once before processing in - * case of use in multithreaded programs. - */ -void -htmlInitAutoClose(void) { - int indx, i = 0; - - if (htmlStartCloseIndexinitialized) return; - - for (indx = 0;indx < 100;indx ++) htmlStartCloseIndex[indx] = NULL; - indx = 0; - while ((htmlStartClose[i] != NULL) && (indx < 100 - 1)) { - htmlStartCloseIndex[indx++] = (const char**) &htmlStartClose[i]; - while (htmlStartClose[i] != NULL) i++; - i++; - } - htmlStartCloseIndexinitialized = 1; -} - -/** - * htmlTagLookup: - * @tag: The tag name in lowercase - * - * Lookup the HTML tag in the ElementTable - * - * Returns the related htmlElemDescPtr or NULL if not found. - */ -const htmlElemDesc * -htmlTagLookup(const xmlChar *tag) { - unsigned int i; - - for (i = 0; i < (sizeof(html40ElementTable) / - sizeof(html40ElementTable[0]));i++) { - if (!xmlStrcasecmp(tag, BAD_CAST html40ElementTable[i].name)) - return((htmlElemDescPtr) &html40ElementTable[i]); - } - return(NULL); -} - -/** - * htmlGetEndPriority: - * @name: The name of the element to look up the priority for. - * - * Return value: The "endtag" priority. - **/ -static int -htmlGetEndPriority (const xmlChar *name) { - int i = 0; - - while ((htmlEndPriority[i].name != NULL) && - (!xmlStrEqual((const xmlChar *)htmlEndPriority[i].name, name))) - i++; - - return(htmlEndPriority[i].priority); -} - - -/** - * htmlCheckAutoClose: - * @newtag: The new tag name - * @oldtag: The old tag name - * - * Checks whether the new tag is one of the registered valid tags for - * closing old. - * Initialize the htmlStartCloseIndex for fast lookup of closing tags names. - * - * Returns 0 if no, 1 if yes. - */ -static int -htmlCheckAutoClose(const xmlChar * newtag, const xmlChar * oldtag) -{ - int i, indx; - const char **closed = NULL; - - if (htmlStartCloseIndexinitialized == 0) - htmlInitAutoClose(); - - /* inefficient, but not a big deal */ - for (indx = 0; indx < 100; indx++) { - closed = htmlStartCloseIndex[indx]; - if (closed == NULL) - return (0); - if (xmlStrEqual(BAD_CAST * closed, newtag)) - break; - } - - i = closed - htmlStartClose; - i++; - while (htmlStartClose[i] != NULL) { - if (xmlStrEqual(BAD_CAST htmlStartClose[i], oldtag)) { - return (1); - } - i++; - } - return (0); -} - -/** - * htmlAutoCloseOnClose: - * @ctxt: an HTML parser context - * @newtag: The new tag name - * @force: force the tag closure - * - * The HTML DTD allows an ending tag to implicitly close other tags. - */ -static void -htmlAutoCloseOnClose(htmlParserCtxtPtr ctxt, const xmlChar * newtag) -{ - const htmlElemDesc *info; - int i, priority; - - priority = htmlGetEndPriority(newtag); - - for (i = (ctxt->nameNr - 1); i >= 0; i--) { - - if (xmlStrEqual(newtag, ctxt->nameTab[i])) - break; - /* - * A missplaced endtag can only close elements with lower - * or equal priority, so if we find an element with higher - * priority before we find an element with - * matching name, we just ignore this endtag - */ - if (htmlGetEndPriority(ctxt->nameTab[i]) > priority) - return; - } - if (i < 0) - return; - - while (!xmlStrEqual(newtag, ctxt->name)) { - info = htmlTagLookup(ctxt->name); - if ((info != NULL) && (info->endTag == 3)) { - htmlParseErr(ctxt, XML_ERR_TAG_NAME_MISMATCH, - "Opening and ending tag mismatch: %s and %s\n", - newtag, ctxt->name); - } - if ((ctxt->sax != NULL) && (ctxt->sax->endElement != NULL)) - ctxt->sax->endElement(ctxt->userData, ctxt->name); - htmlnamePop(ctxt); - } -} - -/** - * htmlAutoCloseOnEnd: - * @ctxt: an HTML parser context - * - * Close all remaining tags at the end of the stream - */ -static void -htmlAutoCloseOnEnd(htmlParserCtxtPtr ctxt) -{ - int i; - - if (ctxt->nameNr == 0) - return; - for (i = (ctxt->nameNr - 1); i >= 0; i--) { - if ((ctxt->sax != NULL) && (ctxt->sax->endElement != NULL)) - ctxt->sax->endElement(ctxt->userData, ctxt->name); - htmlnamePop(ctxt); - } -} - -/** - * htmlAutoClose: - * @ctxt: an HTML parser context - * @newtag: The new tag name or NULL - * - * The HTML DTD allows a tag to implicitly close other tags. - * The list is kept in htmlStartClose array. This function is - * called when a new tag has been detected and generates the - * appropriates closes if possible/needed. - * If newtag is NULL this mean we are at the end of the resource - * and we should check - */ -static void -htmlAutoClose(htmlParserCtxtPtr ctxt, const xmlChar * newtag) -{ - while ((newtag != NULL) && (ctxt->name != NULL) && - (htmlCheckAutoClose(newtag, ctxt->name))) { - if ((ctxt->sax != NULL) && (ctxt->sax->endElement != NULL)) - ctxt->sax->endElement(ctxt->userData, ctxt->name); - htmlnamePop(ctxt); - } - if (newtag == NULL) { - htmlAutoCloseOnEnd(ctxt); - return; - } - while ((newtag == NULL) && (ctxt->name != NULL) && - ((xmlStrEqual(ctxt->name, BAD_CAST "head")) || - (xmlStrEqual(ctxt->name, BAD_CAST "body")) || - (xmlStrEqual(ctxt->name, BAD_CAST "html")))) { - if ((ctxt->sax != NULL) && (ctxt->sax->endElement != NULL)) - ctxt->sax->endElement(ctxt->userData, ctxt->name); - htmlnamePop(ctxt); - } -} - -/** - * htmlAutoCloseTag: - * @doc: the HTML document - * @name: The tag name - * @elem: the HTML element - * - * The HTML DTD allows a tag to implicitly close other tags. - * The list is kept in htmlStartClose array. This function checks - * if the element or one of it's children would autoclose the - * given tag. - * - * Returns 1 if autoclose, 0 otherwise - */ -int -htmlAutoCloseTag(htmlDocPtr doc, const xmlChar *name, htmlNodePtr elem) { - htmlNodePtr child; - - if (elem == NULL) return(1); - if (xmlStrEqual(name, elem->name)) return(0); - if (htmlCheckAutoClose(elem->name, name)) return(1); - child = elem->children; - while (child != NULL) { - if (htmlAutoCloseTag(doc, name, child)) return(1); - child = child->next; - } - return(0); -} - -/** - * htmlIsAutoClosed: - * @doc: the HTML document - * @elem: the HTML element - * - * The HTML DTD allows a tag to implicitly close other tags. - * The list is kept in htmlStartClose array. This function checks - * if a tag is autoclosed by one of it's child - * - * Returns 1 if autoclosed, 0 otherwise - */ -int -htmlIsAutoClosed(htmlDocPtr doc, htmlNodePtr elem) { - htmlNodePtr child; - - if (elem == NULL) return(1); - child = elem->children; - while (child != NULL) { - if (htmlAutoCloseTag(doc, elem->name, child)) return(1); - child = child->next; - } - return(0); -} - -/** - * htmlCheckImplied: - * @ctxt: an HTML parser context - * @newtag: The new tag name - * - * The HTML DTD allows a tag to exists only implicitly - * called when a new tag has been detected and generates the - * appropriates implicit tags if missing - */ -static void -htmlCheckImplied(htmlParserCtxtPtr ctxt, const xmlChar *newtag) { - int i; - - if (ctxt->options & HTML_PARSE_NOIMPLIED) - return; - if (!htmlOmittedDefaultValue) - return; - if (xmlStrEqual(newtag, BAD_CAST"html")) - return; - if (ctxt->nameNr <= 0) { - htmlnamePush(ctxt, BAD_CAST"html"); - if ((ctxt->sax != NULL) && (ctxt->sax->startElement != NULL)) - ctxt->sax->startElement(ctxt->userData, BAD_CAST"html", NULL); - } - if ((xmlStrEqual(newtag, BAD_CAST"body")) || (xmlStrEqual(newtag, BAD_CAST"head"))) - return; - if ((ctxt->nameNr <= 1) && - ((xmlStrEqual(newtag, BAD_CAST"script")) || - (xmlStrEqual(newtag, BAD_CAST"style")) || - (xmlStrEqual(newtag, BAD_CAST"meta")) || - (xmlStrEqual(newtag, BAD_CAST"link")) || - (xmlStrEqual(newtag, BAD_CAST"title")) || - (xmlStrEqual(newtag, BAD_CAST"base")))) { - if (ctxt->html >= 3) { - /* we already saw or generated an <head> before */ - return; - } - /* - * dropped OBJECT ... i you put it first BODY will be - * assumed ! - */ - htmlnamePush(ctxt, BAD_CAST"head"); - if ((ctxt->sax != NULL) && (ctxt->sax->startElement != NULL)) - ctxt->sax->startElement(ctxt->userData, BAD_CAST"head", NULL); - } else if ((!xmlStrEqual(newtag, BAD_CAST"noframes")) && - (!xmlStrEqual(newtag, BAD_CAST"frame")) && - (!xmlStrEqual(newtag, BAD_CAST"frameset"))) { - if (ctxt->html >= 10) { - /* we already saw or generated a <body> before */ - return; - } - for (i = 0;i < ctxt->nameNr;i++) { - if (xmlStrEqual(ctxt->nameTab[i], BAD_CAST"body")) { - return; - } - if (xmlStrEqual(ctxt->nameTab[i], BAD_CAST"head")) { - return; - } - } - - htmlnamePush(ctxt, BAD_CAST"body"); - if ((ctxt->sax != NULL) && (ctxt->sax->startElement != NULL)) - ctxt->sax->startElement(ctxt->userData, BAD_CAST"body", NULL); - } -} - -/** - * htmlCheckParagraph - * @ctxt: an HTML parser context - * - * Check whether a p element need to be implied before inserting - * characters in the current element. - * - * Returns 1 if a paragraph has been inserted, 0 if not and -1 - * in case of error. - */ - -static int -htmlCheckParagraph(htmlParserCtxtPtr ctxt) { - const xmlChar *tag; - int i; - - if (ctxt == NULL) - return(-1); - tag = ctxt->name; - if (tag == NULL) { - htmlAutoClose(ctxt, BAD_CAST"p"); - htmlCheckImplied(ctxt, BAD_CAST"p"); - htmlnamePush(ctxt, BAD_CAST"p"); - if ((ctxt->sax != NULL) && (ctxt->sax->startElement != NULL)) - ctxt->sax->startElement(ctxt->userData, BAD_CAST"p", NULL); - return(1); - } - if (!htmlOmittedDefaultValue) - return(0); - for (i = 0; htmlNoContentElements[i] != NULL; i++) { - if (xmlStrEqual(tag, BAD_CAST htmlNoContentElements[i])) { - htmlAutoClose(ctxt, BAD_CAST"p"); - htmlCheckImplied(ctxt, BAD_CAST"p"); - htmlnamePush(ctxt, BAD_CAST"p"); - if ((ctxt->sax != NULL) && (ctxt->sax->startElement != NULL)) - ctxt->sax->startElement(ctxt->userData, BAD_CAST"p", NULL); - return(1); - } - } - return(0); -} - -/** - * htmlIsScriptAttribute: - * @name: an attribute name - * - * Check if an attribute is of content type Script - * - * Returns 1 is the attribute is a script 0 otherwise - */ -int -htmlIsScriptAttribute(const xmlChar *name) { - unsigned int i; - - if (name == NULL) - return(0); - /* - * all script attributes start with 'on' - */ - if ((name[0] != 'o') || (name[1] != 'n')) - return(0); - for (i = 0; - i < sizeof(htmlScriptAttributes)/sizeof(htmlScriptAttributes[0]); - i++) { - if (xmlStrEqual(name, (const xmlChar *) htmlScriptAttributes[i])) - return(1); - } - return(0); -} - -/************************************************************************ - * * - * The list of HTML predefined entities * - * * - ************************************************************************/ - - -static const htmlEntityDesc html40EntitiesTable[] = { -/* - * the 4 absolute ones, plus apostrophe. - */ -{ 34, "quot", "quotation mark = APL quote, U+0022 ISOnum" }, -{ 38, "amp", "ampersand, U+0026 ISOnum" }, -{ 39, "apos", "single quote" }, -{ 60, "lt", "less-than sign, U+003C ISOnum" }, -{ 62, "gt", "greater-than sign, U+003E ISOnum" }, - -/* - * A bunch still in the 128-255 range - * Replacing them depend really on the charset used. - */ -{ 160, "nbsp", "no-break space = non-breaking space, U+00A0 ISOnum" }, -{ 161, "iexcl","inverted exclamation mark, U+00A1 ISOnum" }, -{ 162, "cent", "cent sign, U+00A2 ISOnum" }, -{ 163, "pound","pound sign, U+00A3 ISOnum" }, -{ 164, "curren","currency sign, U+00A4 ISOnum" }, -{ 165, "yen", "yen sign = yuan sign, U+00A5 ISOnum" }, -{ 166, "brvbar","broken bar = broken vertical bar, U+00A6 ISOnum" }, -{ 167, "sect", "section sign, U+00A7 ISOnum" }, -{ 168, "uml", "diaeresis = spacing diaeresis, U+00A8 ISOdia" }, -{ 169, "copy", "copyright sign, U+00A9 ISOnum" }, -{ 170, "ordf", "feminine ordinal indicator, U+00AA ISOnum" }, -{ 171, "laquo","left-pointing double angle quotation mark = left pointing guillemet, U+00AB ISOnum" }, -{ 172, "not", "not sign, U+00AC ISOnum" }, -{ 173, "shy", "soft hyphen = discretionary hyphen, U+00AD ISOnum" }, -{ 174, "reg", "registered sign = registered trade mark sign, U+00AE ISOnum" }, -{ 175, "macr", "macron = spacing macron = overline = APL overbar, U+00AF ISOdia" }, -{ 176, "deg", "degree sign, U+00B0 ISOnum" }, -{ 177, "plusmn","plus-minus sign = plus-or-minus sign, U+00B1 ISOnum" }, -{ 178, "sup2", "superscript two = superscript digit two = squared, U+00B2 ISOnum" }, -{ 179, "sup3", "superscript three = superscript digit three = cubed, U+00B3 ISOnum" }, -{ 180, "acute","acute accent = spacing acute, U+00B4 ISOdia" }, -{ 181, "micro","micro sign, U+00B5 ISOnum" }, -{ 182, "para", "pilcrow sign = paragraph sign, U+00B6 ISOnum" }, -{ 183, "middot","middle dot = Georgian comma Greek middle dot, U+00B7 ISOnum" }, -{ 184, "cedil","cedilla = spacing cedilla, U+00B8 ISOdia" }, -{ 185, "sup1", "superscript one = superscript digit one, U+00B9 ISOnum" }, -{ 186, "ordm", "masculine ordinal indicator, U+00BA ISOnum" }, -{ 187, "raquo","right-pointing double angle quotation mark right pointing guillemet, U+00BB ISOnum" }, -{ 188, "frac14","vulgar fraction one quarter = fraction one quarter, U+00BC ISOnum" }, -{ 189, "frac12","vulgar fraction one half = fraction one half, U+00BD ISOnum" }, -{ 190, "frac34","vulgar fraction three quarters = fraction three quarters, U+00BE ISOnum" }, -{ 191, "iquest","inverted question mark = turned question mark, U+00BF ISOnum" }, -{ 192, "Agrave","latin capital letter A with grave = latin capital letter A grave, U+00C0 ISOlat1" }, -{ 193, "Aacute","latin capital letter A with acute, U+00C1 ISOlat1" }, -{ 194, "Acirc","latin capital letter A with circumflex, U+00C2 ISOlat1" }, -{ 195, "Atilde","latin capital letter A with tilde, U+00C3 ISOlat1" }, -{ 196, "Auml", "latin capital letter A with diaeresis, U+00C4 ISOlat1" }, -{ 197, "Aring","latin capital letter A with ring above = latin capital letter A ring, U+00C5 ISOlat1" }, -{ 198, "AElig","latin capital letter AE = latin capital ligature AE, U+00C6 ISOlat1" }, -{ 199, "Ccedil","latin capital letter C with cedilla, U+00C7 ISOlat1" }, -{ 200, "Egrave","latin capital letter E with grave, U+00C8 ISOlat1" }, -{ 201, "Eacute","latin capital letter E with acute, U+00C9 ISOlat1" }, -{ 202, "Ecirc","latin capital letter E with circumflex, U+00CA ISOlat1" }, -{ 203, "Euml", "latin capital letter E with diaeresis, U+00CB ISOlat1" }, -{ 204, "Igrave","latin capital letter I with grave, U+00CC ISOlat1" }, -{ 205, "Iacute","latin capital letter I with acute, U+00CD ISOlat1" }, -{ 206, "Icirc","latin capital letter I with circumflex, U+00CE ISOlat1" }, -{ 207, "Iuml", "latin capital letter I with diaeresis, U+00CF ISOlat1" }, -{ 208, "ETH", "latin capital letter ETH, U+00D0 ISOlat1" }, -{ 209, "Ntilde","latin capital letter N with tilde, U+00D1 ISOlat1" }, -{ 210, "Ograve","latin capital letter O with grave, U+00D2 ISOlat1" }, -{ 211, "Oacute","latin capital letter O with acute, U+00D3 ISOlat1" }, -{ 212, "Ocirc","latin capital letter O with circumflex, U+00D4 ISOlat1" }, -{ 213, "Otilde","latin capital letter O with tilde, U+00D5 ISOlat1" }, -{ 214, "Ouml", "latin capital letter O with diaeresis, U+00D6 ISOlat1" }, -{ 215, "times","multiplication sign, U+00D7 ISOnum" }, -{ 216, "Oslash","latin capital letter O with stroke latin capital letter O slash, U+00D8 ISOlat1" }, -{ 217, "Ugrave","latin capital letter U with grave, U+00D9 ISOlat1" }, -{ 218, "Uacute","latin capital letter U with acute, U+00DA ISOlat1" }, -{ 219, "Ucirc","latin capital letter U with circumflex, U+00DB ISOlat1" }, -{ 220, "Uuml", "latin capital letter U with diaeresis, U+00DC ISOlat1" }, -{ 221, "Yacute","latin capital letter Y with acute, U+00DD ISOlat1" }, -{ 222, "THORN","latin capital letter THORN, U+00DE ISOlat1" }, -{ 223, "szlig","latin small letter sharp s = ess-zed, U+00DF ISOlat1" }, -{ 224, "agrave","latin small letter a with grave = latin small letter a grave, U+00E0 ISOlat1" }, -{ 225, "aacute","latin small letter a with acute, U+00E1 ISOlat1" }, -{ 226, "acirc","latin small letter a with circumflex, U+00E2 ISOlat1" }, -{ 227, "atilde","latin small letter a with tilde, U+00E3 ISOlat1" }, -{ 228, "auml", "latin small letter a with diaeresis, U+00E4 ISOlat1" }, -{ 229, "aring","latin small letter a with ring above = latin small letter a ring, U+00E5 ISOlat1" }, -{ 230, "aelig","latin small letter ae = latin small ligature ae, U+00E6 ISOlat1" }, -{ 231, "ccedil","latin small letter c with cedilla, U+00E7 ISOlat1" }, -{ 232, "egrave","latin small letter e with grave, U+00E8 ISOlat1" }, -{ 233, "eacute","latin small letter e with acute, U+00E9 ISOlat1" }, -{ 234, "ecirc","latin small letter e with circumflex, U+00EA ISOlat1" }, -{ 235, "euml", "latin small letter e with diaeresis, U+00EB ISOlat1" }, -{ 236, "igrave","latin small letter i with grave, U+00EC ISOlat1" }, -{ 237, "iacute","latin small letter i with acute, U+00ED ISOlat1" }, -{ 238, "icirc","latin small letter i with circumflex, U+00EE ISOlat1" }, -{ 239, "iuml", "latin small letter i with diaeresis, U+00EF ISOlat1" }, -{ 240, "eth", "latin small letter eth, U+00F0 ISOlat1" }, -{ 241, "ntilde","latin small letter n with tilde, U+00F1 ISOlat1" }, -{ 242, "ograve","latin small letter o with grave, U+00F2 ISOlat1" }, -{ 243, "oacute","latin small letter o with acute, U+00F3 ISOlat1" }, -{ 244, "ocirc","latin small letter o with circumflex, U+00F4 ISOlat1" }, -{ 245, "otilde","latin small letter o with tilde, U+00F5 ISOlat1" }, -{ 246, "ouml", "latin small letter o with diaeresis, U+00F6 ISOlat1" }, -{ 247, "divide","division sign, U+00F7 ISOnum" }, -{ 248, "oslash","latin small letter o with stroke, = latin small letter o slash, U+00F8 ISOlat1" }, -{ 249, "ugrave","latin small letter u with grave, U+00F9 ISOlat1" }, -{ 250, "uacute","latin small letter u with acute, U+00FA ISOlat1" }, -{ 251, "ucirc","latin small letter u with circumflex, U+00FB ISOlat1" }, -{ 252, "uuml", "latin small letter u with diaeresis, U+00FC ISOlat1" }, -{ 253, "yacute","latin small letter y with acute, U+00FD ISOlat1" }, -{ 254, "thorn","latin small letter thorn with, U+00FE ISOlat1" }, -{ 255, "yuml", "latin small letter y with diaeresis, U+00FF ISOlat1" }, - -{ 338, "OElig","latin capital ligature OE, U+0152 ISOlat2" }, -{ 339, "oelig","latin small ligature oe, U+0153 ISOlat2" }, -{ 352, "Scaron","latin capital letter S with caron, U+0160 ISOlat2" }, -{ 353, "scaron","latin small letter s with caron, U+0161 ISOlat2" }, -{ 376, "Yuml", "latin capital letter Y with diaeresis, U+0178 ISOlat2" }, - -/* - * Anything below should really be kept as entities references - */ -{ 402, "fnof", "latin small f with hook = function = florin, U+0192 ISOtech" }, - -{ 710, "circ", "modifier letter circumflex accent, U+02C6 ISOpub" }, -{ 732, "tilde","small tilde, U+02DC ISOdia" }, - -{ 913, "Alpha","greek capital letter alpha, U+0391" }, -{ 914, "Beta", "greek capital letter beta, U+0392" }, -{ 915, "Gamma","greek capital letter gamma, U+0393 ISOgrk3" }, -{ 916, "Delta","greek capital letter delta, U+0394 ISOgrk3" }, -{ 917, "Epsilon","greek capital letter epsilon, U+0395" }, -{ 918, "Zeta", "greek capital letter zeta, U+0396" }, -{ 919, "Eta", "greek capital letter eta, U+0397" }, -{ 920, "Theta","greek capital letter theta, U+0398 ISOgrk3" }, -{ 921, "Iota", "greek capital letter iota, U+0399" }, -{ 922, "Kappa","greek capital letter kappa, U+039A" }, -{ 923, "Lambda", "greek capital letter lambda, U+039B ISOgrk3" }, -{ 924, "Mu", "greek capital letter mu, U+039C" }, -{ 925, "Nu", "greek capital letter nu, U+039D" }, -{ 926, "Xi", "greek capital letter xi, U+039E ISOgrk3" }, -{ 927, "Omicron","greek capital letter omicron, U+039F" }, -{ 928, "Pi", "greek capital letter pi, U+03A0 ISOgrk3" }, -{ 929, "Rho", "greek capital letter rho, U+03A1" }, -{ 931, "Sigma","greek capital letter sigma, U+03A3 ISOgrk3" }, -{ 932, "Tau", "greek capital letter tau, U+03A4" }, -{ 933, "Upsilon","greek capital letter upsilon, U+03A5 ISOgrk3" }, -{ 934, "Phi", "greek capital letter phi, U+03A6 ISOgrk3" }, -{ 935, "Chi", "greek capital letter chi, U+03A7" }, -{ 936, "Psi", "greek capital letter psi, U+03A8 ISOgrk3" }, -{ 937, "Omega","greek capital letter omega, U+03A9 ISOgrk3" }, - -{ 945, "alpha","greek small letter alpha, U+03B1 ISOgrk3" }, -{ 946, "beta", "greek small letter beta, U+03B2 ISOgrk3" }, -{ 947, "gamma","greek small letter gamma, U+03B3 ISOgrk3" }, -{ 948, "delta","greek small letter delta, U+03B4 ISOgrk3" }, -{ 949, "epsilon","greek small letter epsilon, U+03B5 ISOgrk3" }, -{ 950, "zeta", "greek small letter zeta, U+03B6 ISOgrk3" }, -{ 951, "eta", "greek small letter eta, U+03B7 ISOgrk3" }, -{ 952, "theta","greek small letter theta, U+03B8 ISOgrk3" }, -{ 953, "iota", "greek small letter iota, U+03B9 ISOgrk3" }, -{ 954, "kappa","greek small letter kappa, U+03BA ISOgrk3" }, -{ 955, "lambda","greek small letter lambda, U+03BB ISOgrk3" }, -{ 956, "mu", "greek small letter mu, U+03BC ISOgrk3" }, -{ 957, "nu", "greek small letter nu, U+03BD ISOgrk3" }, -{ 958, "xi", "greek small letter xi, U+03BE ISOgrk3" }, -{ 959, "omicron","greek small letter omicron, U+03BF NEW" }, -{ 960, "pi", "greek small letter pi, U+03C0 ISOgrk3" }, -{ 961, "rho", "greek small letter rho, U+03C1 ISOgrk3" }, -{ 962, "sigmaf","greek small letter final sigma, U+03C2 ISOgrk3" }, -{ 963, "sigma","greek small letter sigma, U+03C3 ISOgrk3" }, -{ 964, "tau", "greek small letter tau, U+03C4 ISOgrk3" }, -{ 965, "upsilon","greek small letter upsilon, U+03C5 ISOgrk3" }, -{ 966, "phi", "greek small letter phi, U+03C6 ISOgrk3" }, -{ 967, "chi", "greek small letter chi, U+03C7 ISOgrk3" }, -{ 968, "psi", "greek small letter psi, U+03C8 ISOgrk3" }, -{ 969, "omega","greek small letter omega, U+03C9 ISOgrk3" }, -{ 977, "thetasym","greek small letter theta symbol, U+03D1 NEW" }, -{ 978, "upsih","greek upsilon with hook symbol, U+03D2 NEW" }, -{ 982, "piv", "greek pi symbol, U+03D6 ISOgrk3" }, - -{ 8194, "ensp", "en space, U+2002 ISOpub" }, -{ 8195, "emsp", "em space, U+2003 ISOpub" }, -{ 8201, "thinsp","thin space, U+2009 ISOpub" }, -{ 8204, "zwnj", "zero width non-joiner, U+200C NEW RFC 2070" }, -{ 8205, "zwj", "zero width joiner, U+200D NEW RFC 2070" }, -{ 8206, "lrm", "left-to-right mark, U+200E NEW RFC 2070" }, -{ 8207, "rlm", "right-to-left mark, U+200F NEW RFC 2070" }, -{ 8211, "ndash","en dash, U+2013 ISOpub" }, -{ 8212, "mdash","em dash, U+2014 ISOpub" }, -{ 8216, "lsquo","left single quotation mark, U+2018 ISOnum" }, -{ 8217, "rsquo","right single quotation mark, U+2019 ISOnum" }, -{ 8218, "sbquo","single low-9 quotation mark, U+201A NEW" }, -{ 8220, "ldquo","left double quotation mark, U+201C ISOnum" }, -{ 8221, "rdquo","right double quotation mark, U+201D ISOnum" }, -{ 8222, "bdquo","double low-9 quotation mark, U+201E NEW" }, -{ 8224, "dagger","dagger, U+2020 ISOpub" }, -{ 8225, "Dagger","double dagger, U+2021 ISOpub" }, - -{ 8226, "bull", "bullet = black small circle, U+2022 ISOpub" }, -{ 8230, "hellip","horizontal ellipsis = three dot leader, U+2026 ISOpub" }, - -{ 8240, "permil","per mille sign, U+2030 ISOtech" }, - -{ 8242, "prime","prime = minutes = feet, U+2032 ISOtech" }, -{ 8243, "Prime","double prime = seconds = inches, U+2033 ISOtech" }, - -{ 8249, "lsaquo","single left-pointing angle quotation mark, U+2039 ISO proposed" }, -{ 8250, "rsaquo","single right-pointing angle quotation mark, U+203A ISO proposed" }, - -{ 8254, "oline","overline = spacing overscore, U+203E NEW" }, -{ 8260, "frasl","fraction slash, U+2044 NEW" }, - -{ 8364, "euro", "euro sign, U+20AC NEW" }, - -{ 8465, "image","blackletter capital I = imaginary part, U+2111 ISOamso" }, -{ 8472, "weierp","script capital P = power set = Weierstrass p, U+2118 ISOamso" }, -{ 8476, "real", "blackletter capital R = real part symbol, U+211C ISOamso" }, -{ 8482, "trade","trade mark sign, U+2122 ISOnum" }, -{ 8501, "alefsym","alef symbol = first transfinite cardinal, U+2135 NEW" }, -{ 8592, "larr", "leftwards arrow, U+2190 ISOnum" }, -{ 8593, "uarr", "upwards arrow, U+2191 ISOnum" }, -{ 8594, "rarr", "rightwards arrow, U+2192 ISOnum" }, -{ 8595, "darr", "downwards arrow, U+2193 ISOnum" }, -{ 8596, "harr", "left right arrow, U+2194 ISOamsa" }, -{ 8629, "crarr","downwards arrow with corner leftwards = carriage return, U+21B5 NEW" }, -{ 8656, "lArr", "leftwards double arrow, U+21D0 ISOtech" }, -{ 8657, "uArr", "upwards double arrow, U+21D1 ISOamsa" }, -{ 8658, "rArr", "rightwards double arrow, U+21D2 ISOtech" }, -{ 8659, "dArr", "downwards double arrow, U+21D3 ISOamsa" }, -{ 8660, "hArr", "left right double arrow, U+21D4 ISOamsa" }, - -{ 8704, "forall","for all, U+2200 ISOtech" }, -{ 8706, "part", "partial differential, U+2202 ISOtech" }, -{ 8707, "exist","there exists, U+2203 ISOtech" }, -{ 8709, "empty","empty set = null set = diameter, U+2205 ISOamso" }, -{ 8711, "nabla","nabla = backward difference, U+2207 ISOtech" }, -{ 8712, "isin", "element of, U+2208 ISOtech" }, -{ 8713, "notin","not an element of, U+2209 ISOtech" }, -{ 8715, "ni", "contains as member, U+220B ISOtech" }, -{ 8719, "prod", "n-ary product = product sign, U+220F ISOamsb" }, -{ 8721, "sum", "n-ary summation, U+2211 ISOamsb" }, -{ 8722, "minus","minus sign, U+2212 ISOtech" }, -{ 8727, "lowast","asterisk operator, U+2217 ISOtech" }, -{ 8730, "radic","square root = radical sign, U+221A ISOtech" }, -{ 8733, "prop", "proportional to, U+221D ISOtech" }, -{ 8734, "infin","infinity, U+221E ISOtech" }, -{ 8736, "ang", "angle, U+2220 ISOamso" }, -{ 8743, "and", "logical and = wedge, U+2227 ISOtech" }, -{ 8744, "or", "logical or = vee, U+2228 ISOtech" }, -{ 8745, "cap", "intersection = cap, U+2229 ISOtech" }, -{ 8746, "cup", "union = cup, U+222A ISOtech" }, -{ 8747, "int", "integral, U+222B ISOtech" }, -{ 8756, "there4","therefore, U+2234 ISOtech" }, -{ 8764, "sim", "tilde operator = varies with = similar to, U+223C ISOtech" }, -{ 8773, "cong", "approximately equal to, U+2245 ISOtech" }, -{ 8776, "asymp","almost equal to = asymptotic to, U+2248 ISOamsr" }, -{ 8800, "ne", "not equal to, U+2260 ISOtech" }, -{ 8801, "equiv","identical to, U+2261 ISOtech" }, -{ 8804, "le", "less-than or equal to, U+2264 ISOtech" }, -{ 8805, "ge", "greater-than or equal to, U+2265 ISOtech" }, -{ 8834, "sub", "subset of, U+2282 ISOtech" }, -{ 8835, "sup", "superset of, U+2283 ISOtech" }, -{ 8836, "nsub", "not a subset of, U+2284 ISOamsn" }, -{ 8838, "sube", "subset of or equal to, U+2286 ISOtech" }, -{ 8839, "supe", "superset of or equal to, U+2287 ISOtech" }, -{ 8853, "oplus","circled plus = direct sum, U+2295 ISOamsb" }, -{ 8855, "otimes","circled times = vector product, U+2297 ISOamsb" }, -{ 8869, "perp", "up tack = orthogonal to = perpendicular, U+22A5 ISOtech" }, -{ 8901, "sdot", "dot operator, U+22C5 ISOamsb" }, -{ 8968, "lceil","left ceiling = apl upstile, U+2308 ISOamsc" }, -{ 8969, "rceil","right ceiling, U+2309 ISOamsc" }, -{ 8970, "lfloor","left floor = apl downstile, U+230A ISOamsc" }, -{ 8971, "rfloor","right floor, U+230B ISOamsc" }, -{ 9001, "lang", "left-pointing angle bracket = bra, U+2329 ISOtech" }, -{ 9002, "rang", "right-pointing angle bracket = ket, U+232A ISOtech" }, -{ 9674, "loz", "lozenge, U+25CA ISOpub" }, - -{ 9824, "spades","black spade suit, U+2660 ISOpub" }, -{ 9827, "clubs","black club suit = shamrock, U+2663 ISOpub" }, -{ 9829, "hearts","black heart suit = valentine, U+2665 ISOpub" }, -{ 9830, "diams","black diamond suit, U+2666 ISOpub" }, - -}; - -/************************************************************************ - * * - * Commodity functions to handle entities * - * * - ************************************************************************/ - -/* - * Macro used to grow the current buffer. - */ -#define growBuffer(buffer) { \ - xmlChar *tmp; \ - buffer##_size *= 2; \ - tmp = (xmlChar *) xmlRealloc(buffer, buffer##_size * sizeof(xmlChar)); \ - if (tmp == NULL) { \ - htmlErrMemory(ctxt, "growing buffer\n"); \ - xmlFree(buffer); \ - return(NULL); \ - } \ - buffer = tmp; \ -} - -/** - * htmlEntityLookup: - * @name: the entity name - * - * Lookup the given entity in EntitiesTable - * - * TODO: the linear scan is really ugly, an hash table is really needed. - * - * Returns the associated htmlEntityDescPtr if found, NULL otherwise. - */ -const htmlEntityDesc * -htmlEntityLookup(const xmlChar *name) { - unsigned int i; - - for (i = 0;i < (sizeof(html40EntitiesTable)/ - sizeof(html40EntitiesTable[0]));i++) { - if (xmlStrEqual(name, BAD_CAST html40EntitiesTable[i].name)) { - return((htmlEntityDescPtr) &html40EntitiesTable[i]); - } - } - return(NULL); -} - -/** - * htmlEntityValueLookup: - * @value: the entity's unicode value - * - * Lookup the given entity in EntitiesTable - * - * TODO: the linear scan is really ugly, an hash table is really needed. - * - * Returns the associated htmlEntityDescPtr if found, NULL otherwise. - */ -const htmlEntityDesc * -htmlEntityValueLookup(unsigned int value) { - unsigned int i; - - for (i = 0;i < (sizeof(html40EntitiesTable)/ - sizeof(html40EntitiesTable[0]));i++) { - if (html40EntitiesTable[i].value >= value) { - if (html40EntitiesTable[i].value > value) - break; - return((htmlEntityDescPtr) &html40EntitiesTable[i]); - } - } - return(NULL); -} - -/** - * UTF8ToHtml: - * @out: a pointer to an array of bytes to store the result - * @outlen: the length of @out - * @in: a pointer to an array of UTF-8 chars - * @inlen: the length of @in - * - * Take a block of UTF-8 chars in and try to convert it to an ASCII - * plus HTML entities block of chars out. - * - * Returns 0 if success, -2 if the transcoding fails, or -1 otherwise - * The value of @inlen after return is the number of octets consumed - * as the return value is positive, else unpredictable. - * The value of @outlen after return is the number of octets consumed. - */ -int -UTF8ToHtml(unsigned char* out, int *outlen, - const unsigned char* in, int *inlen) { - const unsigned char* processed = in; - const unsigned char* outend; - const unsigned char* outstart = out; - const unsigned char* instart = in; - const unsigned char* inend; - unsigned int c, d; - int trailing; - - if ((out == NULL) || (outlen == NULL) || (inlen == NULL)) return(-1); - if (in == NULL) { - /* - * initialization nothing to do - */ - *outlen = 0; - *inlen = 0; - return(0); - } - inend = in + (*inlen); - outend = out + (*outlen); - while (in < inend) { - d = *in++; - if (d < 0x80) { c= d; trailing= 0; } - else if (d < 0xC0) { - /* trailing byte in leading position */ - *outlen = out - outstart; - *inlen = processed - instart; - return(-2); - } else if (d < 0xE0) { c= d & 0x1F; trailing= 1; } - else if (d < 0xF0) { c= d & 0x0F; trailing= 2; } - else if (d < 0xF8) { c= d & 0x07; trailing= 3; } - else { - /* no chance for this in Ascii */ - *outlen = out - outstart; - *inlen = processed - instart; - return(-2); - } - - if (inend - in < trailing) { - break; - } - - for ( ; trailing; trailing--) { - if ((in >= inend) || (((d= *in++) & 0xC0) != 0x80)) - break; - c <<= 6; - c |= d & 0x3F; - } - - /* assertion: c is a single UTF-4 value */ - if (c < 0x80) { - if (out + 1 >= outend) - break; - *out++ = c; - } else { - int len; - const htmlEntityDesc * ent; - const char *cp; - char nbuf[16]; - - /* - * Try to lookup a predefined HTML entity for it - */ - - ent = htmlEntityValueLookup(c); - if (ent == NULL) { - snprintf(nbuf, sizeof(nbuf), "#%u", c); - cp = nbuf; - } - else - cp = ent->name; - len = strlen(cp); - if (out + 2 + len >= outend) - break; - *out++ = '&'; - memcpy(out, cp, len); - out += len; - *out++ = ';'; - } - processed = in; - } - *outlen = out - outstart; - *inlen = processed - instart; - return(0); -} - -/** - * htmlEncodeEntities: - * @out: a pointer to an array of bytes to store the result - * @outlen: the length of @out - * @in: a pointer to an array of UTF-8 chars - * @inlen: the length of @in - * @quoteChar: the quote character to escape (' or ") or zero. - * - * Take a block of UTF-8 chars in and try to convert it to an ASCII - * plus HTML entities block of chars out. - * - * Returns 0 if success, -2 if the transcoding fails, or -1 otherwise - * The value of @inlen after return is the number of octets consumed - * as the return value is positive, else unpredictable. - * The value of @outlen after return is the number of octets consumed. - */ -int -htmlEncodeEntities(unsigned char* out, int *outlen, - const unsigned char* in, int *inlen, int quoteChar) { - const unsigned char* processed = in; - const unsigned char* outend; - const unsigned char* outstart = out; - const unsigned char* instart = in; - const unsigned char* inend; - unsigned int c, d; - int trailing; - - if ((out == NULL) || (outlen == NULL) || (inlen == NULL) || (in == NULL)) - return(-1); - outend = out + (*outlen); - inend = in + (*inlen); - while (in < inend) { - d = *in++; - if (d < 0x80) { c= d; trailing= 0; } - else if (d < 0xC0) { - /* trailing byte in leading position */ - *outlen = out - outstart; - *inlen = processed - instart; - return(-2); - } else if (d < 0xE0) { c= d & 0x1F; trailing= 1; } - else if (d < 0xF0) { c= d & 0x0F; trailing= 2; } - else if (d < 0xF8) { c= d & 0x07; trailing= 3; } - else { - /* no chance for this in Ascii */ - *outlen = out - outstart; - *inlen = processed - instart; - return(-2); - } - - if (inend - in < trailing) - break; - - while (trailing--) { - if (((d= *in++) & 0xC0) != 0x80) { - *outlen = out - outstart; - *inlen = processed - instart; - return(-2); - } - c <<= 6; - c |= d & 0x3F; - } - - /* assertion: c is a single UTF-4 value */ - if ((c < 0x80) && (c != (unsigned int) quoteChar) && - (c != '&') && (c != '<') && (c != '>')) { - if (out >= outend) - break; - *out++ = c; - } else { - const htmlEntityDesc * ent; - const char *cp; - char nbuf[16]; - int len; - - /* - * Try to lookup a predefined HTML entity for it - */ - ent = htmlEntityValueLookup(c); - if (ent == NULL) { - snprintf(nbuf, sizeof(nbuf), "#%u", c); - cp = nbuf; - } - else - cp = ent->name; - len = strlen(cp); - if (out + 2 + len > outend) - break; - *out++ = '&'; - memcpy(out, cp, len); - out += len; - *out++ = ';'; - } - processed = in; - } - *outlen = out - outstart; - *inlen = processed - instart; - return(0); -} - -/************************************************************************ - * * - * Commodity functions to handle streams * - * * - ************************************************************************/ - -/** - * htmlNewInputStream: - * @ctxt: an HTML parser context - * - * Create a new input stream structure - * Returns the new input stream or NULL - */ -static htmlParserInputPtr -htmlNewInputStream(htmlParserCtxtPtr ctxt) { - htmlParserInputPtr input; - - input = (xmlParserInputPtr) xmlMalloc(sizeof(htmlParserInput)); - if (input == NULL) { - htmlErrMemory(ctxt, "couldn't allocate a new input stream\n"); - return(NULL); - } - memset(input, 0, sizeof(htmlParserInput)); - input->filename = NULL; - input->directory = NULL; - input->base = NULL; - input->cur = NULL; - input->buf = NULL; - input->line = 1; - input->col = 1; - input->buf = NULL; - input->free = NULL; - input->version = NULL; - input->consumed = 0; - input->length = 0; - return(input); -} - - -/************************************************************************ - * * - * Commodity functions, cleanup needed ? * - * * - ************************************************************************/ -/* - * all tags allowing pc data from the html 4.01 loose dtd - * NOTE: it might be more apropriate to integrate this information - * into the html40ElementTable array but I don't want to risk any - * binary incomptibility - */ -static const char *allowPCData[] = { - "a", "abbr", "acronym", "address", "applet", "b", "bdo", "big", - "blockquote", "body", "button", "caption", "center", "cite", "code", - "dd", "del", "dfn", "div", "dt", "em", "font", "form", "h1", "h2", - "h3", "h4", "h5", "h6", "i", "iframe", "ins", "kbd", "label", "legend", - "li", "noframes", "noscript", "object", "p", "pre", "q", "s", "samp", - "small", "span", "strike", "strong", "td", "th", "tt", "u", "var" -}; - -/** - * areBlanks: - * @ctxt: an HTML parser context - * @str: a xmlChar * - * @len: the size of @str - * - * Is this a sequence of blank chars that one can ignore ? - * - * Returns 1 if ignorable 0 otherwise. - */ - -static int areBlanks(htmlParserCtxtPtr ctxt, const xmlChar *str, int len) { - unsigned int i; - int j; - xmlNodePtr lastChild; - xmlDtdPtr dtd; - - for (j = 0;j < len;j++) - if (!(IS_BLANK_CH(str[j]))) return(0); - - if (CUR == 0) return(1); - if (CUR != '<') return(0); - if (ctxt->name == NULL) - return(1); - if (xmlStrEqual(ctxt->name, BAD_CAST"html")) - return(1); - if (xmlStrEqual(ctxt->name, BAD_CAST"head")) - return(1); - - /* Only strip CDATA children of the body tag for strict HTML DTDs */ - if (xmlStrEqual(ctxt->name, BAD_CAST "body") && ctxt->myDoc != NULL) { - dtd = xmlGetIntSubset(ctxt->myDoc); - if (dtd != NULL && dtd->ExternalID != NULL) { - if (!xmlStrcasecmp(dtd->ExternalID, BAD_CAST "-//W3C//DTD HTML 4.01//EN") || - !xmlStrcasecmp(dtd->ExternalID, BAD_CAST "-//W3C//DTD HTML 4//EN")) - return(1); - } - } - - if (ctxt->node == NULL) return(0); - lastChild = xmlGetLastChild(ctxt->node); - while ((lastChild) && (lastChild->type == XML_COMMENT_NODE)) - lastChild = lastChild->prev; - if (lastChild == NULL) { - if ((ctxt->node->type != XML_ELEMENT_NODE) && - (ctxt->node->content != NULL)) return(0); - /* keep ws in constructs like ...<b> </b>... - for all tags "b" allowing PCDATA */ - for ( i = 0; i < sizeof(allowPCData)/sizeof(allowPCData[0]); i++ ) { - if ( xmlStrEqual(ctxt->name, BAD_CAST allowPCData[i]) ) { - return(0); - } - } - } else if (xmlNodeIsText(lastChild)) { - return(0); - } else { - /* keep ws in constructs like <p><b>xy</b> <i>z</i><p> - for all tags "p" allowing PCDATA */ - for ( i = 0; i < sizeof(allowPCData)/sizeof(allowPCData[0]); i++ ) { - if ( xmlStrEqual(lastChild->name, BAD_CAST allowPCData[i]) ) { - return(0); - } - } - } - return(1); -} - -/** - * htmlNewDocNoDtD: - * @URI: URI for the dtd, or NULL - * @ExternalID: the external ID of the DTD, or NULL - * - * Creates a new HTML document without a DTD node if @URI and @ExternalID - * are NULL - * - * Returns a new document, do not initialize the DTD if not provided - */ -htmlDocPtr -htmlNewDocNoDtD(const xmlChar *URI, const xmlChar *ExternalID) { - xmlDocPtr cur; - - /* - * Allocate a new document and fill the fields. - */ - cur = (xmlDocPtr) xmlMalloc(sizeof(xmlDoc)); - if (cur == NULL) { - htmlErrMemory(NULL, "HTML document creation failed\n"); - return(NULL); - } - memset(cur, 0, sizeof(xmlDoc)); - - cur->type = XML_HTML_DOCUMENT_NODE; - cur->version = NULL; - cur->intSubset = NULL; - cur->doc = cur; - cur->name = NULL; - cur->children = NULL; - cur->extSubset = NULL; - cur->oldNs = NULL; - cur->encoding = NULL; - cur->standalone = 1; - cur->compression = 0; - cur->ids = NULL; - cur->refs = NULL; - cur->_private = NULL; - cur->charset = XML_CHAR_ENCODING_UTF8; - cur->properties = XML_DOC_HTML | XML_DOC_USERBUILT; - if ((ExternalID != NULL) || - (URI != NULL)) - xmlCreateIntSubset(cur, BAD_CAST "html", ExternalID, URI); - return(cur); -} - -/** - * htmlNewDoc: - * @URI: URI for the dtd, or NULL - * @ExternalID: the external ID of the DTD, or NULL - * - * Creates a new HTML document - * - * Returns a new document - */ -htmlDocPtr -htmlNewDoc(const xmlChar *URI, const xmlChar *ExternalID) { - if ((URI == NULL) && (ExternalID == NULL)) - return(htmlNewDocNoDtD( - BAD_CAST "http://www.w3.org/TR/REC-html40/loose.dtd", - BAD_CAST "-//W3C//DTD HTML 4.0 Transitional//EN")); - - return(htmlNewDocNoDtD(URI, ExternalID)); -} - - -/************************************************************************ - * * - * The parser itself * - * Relates to http://www.w3.org/TR/html40 * - * * - ************************************************************************/ - -/************************************************************************ - * * - * The parser itself * - * * - ************************************************************************/ - -static const xmlChar * htmlParseNameComplex(xmlParserCtxtPtr ctxt); - -/** - * htmlParseHTMLName: - * @ctxt: an HTML parser context - * - * parse an HTML tag or attribute name, note that we convert it to lowercase - * since HTML names are not case-sensitive. - * - * Returns the Tag Name parsed or NULL - */ - -static const xmlChar * -htmlParseHTMLName(htmlParserCtxtPtr ctxt) { - int i = 0; - xmlChar loc[HTML_PARSER_BUFFER_SIZE]; - - if (!IS_ASCII_LETTER(CUR) && (CUR != '_') && - (CUR != ':') && (CUR != '.')) return(NULL); - - while ((i < HTML_PARSER_BUFFER_SIZE) && - ((IS_ASCII_LETTER(CUR)) || (IS_ASCII_DIGIT(CUR)) || - (CUR == ':') || (CUR == '-') || (CUR == '_') || - (CUR == '.'))) { - if ((CUR >= 'A') && (CUR <= 'Z')) loc[i] = CUR + 0x20; - else loc[i] = CUR; - i++; - - NEXT; - } - - return(xmlDictLookup(ctxt->dict, loc, i)); -} - - -/** - * htmlParseHTMLName_nonInvasive: - * @ctxt: an HTML parser context - * - * parse an HTML tag or attribute name, note that we convert it to lowercase - * since HTML names are not case-sensitive, this doesn't consume the data - * from the stream, it's a look-ahead - * - * Returns the Tag Name parsed or NULL - */ - -static const xmlChar * -htmlParseHTMLName_nonInvasive(htmlParserCtxtPtr ctxt) { - int i = 0; - xmlChar loc[HTML_PARSER_BUFFER_SIZE]; - - if (!IS_ASCII_LETTER(NXT(1)) && (NXT(1) != '_') && - (NXT(1) != ':')) return(NULL); - - while ((i < HTML_PARSER_BUFFER_SIZE) && - ((IS_ASCII_LETTER(NXT(1+i))) || (IS_ASCII_DIGIT(NXT(1+i))) || - (NXT(1+i) == ':') || (NXT(1+i) == '-') || (NXT(1+i) == '_'))) { - if ((NXT(1+i) >= 'A') && (NXT(1+i) <= 'Z')) loc[i] = NXT(1+i) + 0x20; - else loc[i] = NXT(1+i); - i++; - } - - return(xmlDictLookup(ctxt->dict, loc, i)); -} - - -/** - * htmlParseName: - * @ctxt: an HTML parser context - * - * parse an HTML name, this routine is case sensitive. - * - * Returns the Name parsed or NULL - */ - -static const xmlChar * -htmlParseName(htmlParserCtxtPtr ctxt) { - const xmlChar *in; - const xmlChar *ret; - int count = 0; - - GROW; - - /* - * Accelerator for simple ASCII names - */ - in = ctxt->input->cur; - if (((*in >= 0x61) && (*in <= 0x7A)) || - ((*in >= 0x41) && (*in <= 0x5A)) || - (*in == '_') || (*in == ':')) { - in++; - while (((*in >= 0x61) && (*in <= 0x7A)) || - ((*in >= 0x41) && (*in <= 0x5A)) || - ((*in >= 0x30) && (*in <= 0x39)) || - (*in == '_') || (*in == '-') || - (*in == ':') || (*in == '.')) - in++; - - if (in == ctxt->input->end) - return(NULL); - - if ((*in > 0) && (*in < 0x80)) { - count = in - ctxt->input->cur; - ret = xmlDictLookup(ctxt->dict, ctxt->input->cur, count); - ctxt->input->cur = in; - ctxt->nbChars += count; - ctxt->input->col += count; - return(ret); - } - } - return(htmlParseNameComplex(ctxt)); -} - -static const xmlChar * -htmlParseNameComplex(xmlParserCtxtPtr ctxt) { - int len = 0, l; - int c; - int count = 0; - const xmlChar *base = ctxt->input->base; - - /* - * Handler for more complex cases - */ - GROW; - c = CUR_CHAR(l); - if ((c == ' ') || (c == '>') || (c == '/') || /* accelerators */ - (!IS_LETTER(c) && (c != '_') && - (c != ':'))) { - return(NULL); - } - - while ((c != ' ') && (c != '>') && (c != '/') && /* test bigname.xml */ - ((IS_LETTER(c)) || (IS_DIGIT(c)) || - (c == '.') || (c == '-') || - (c == '_') || (c == ':') || - (IS_COMBINING(c)) || - (IS_EXTENDER(c)))) { - if (count++ > 100) { - count = 0; - GROW; - } - len += l; - NEXTL(l); - c = CUR_CHAR(l); - if (ctxt->input->base != base) { - /* - * We changed encoding from an unknown encoding - * Input buffer changed location, so we better start again - */ - return(htmlParseNameComplex(ctxt)); - } - } - - if (ctxt->input->base > ctxt->input->cur - len) - return(NULL); - - return(xmlDictLookup(ctxt->dict, ctxt->input->cur - len, len)); -} - - -/** - * htmlParseHTMLAttribute: - * @ctxt: an HTML parser context - * @stop: a char stop value - * - * parse an HTML attribute value till the stop (quote), if - * stop is 0 then it stops at the first space - * - * Returns the attribute parsed or NULL - */ - -static xmlChar * -htmlParseHTMLAttribute(htmlParserCtxtPtr ctxt, const xmlChar stop) { - xmlChar *buffer = NULL; - int buffer_size = 0; - xmlChar *out = NULL; - const xmlChar *name = NULL; - const xmlChar *cur = NULL; - const htmlEntityDesc * ent; - - /* - * allocate a translation buffer. - */ - buffer_size = HTML_PARSER_BUFFER_SIZE; - buffer = (xmlChar *) xmlMallocAtomic(buffer_size * sizeof(xmlChar)); - if (buffer == NULL) { - htmlErrMemory(ctxt, "buffer allocation failed\n"); - return(NULL); - } - out = buffer; - - /* - * Ok loop until we reach one of the ending chars - */ - while ((CUR != 0) && (CUR != stop)) { - if ((stop == 0) && (CUR == '>')) break; - if ((stop == 0) && (IS_BLANK_CH(CUR))) break; - if (CUR == '&') { - if (NXT(1) == '#') { - unsigned int c; - int bits; - - c = htmlParseCharRef(ctxt); - if (c < 0x80) - { *out++ = c; bits= -6; } - else if (c < 0x800) - { *out++ =((c >> 6) & 0x1F) | 0xC0; bits= 0; } - else if (c < 0x10000) - { *out++ =((c >> 12) & 0x0F) | 0xE0; bits= 6; } - else - { *out++ =((c >> 18) & 0x07) | 0xF0; bits= 12; } - - for ( ; bits >= 0; bits-= 6) { - *out++ = ((c >> bits) & 0x3F) | 0x80; - } - - if (out - buffer > buffer_size - 100) { - int indx = out - buffer; - - growBuffer(buffer); - out = &buffer[indx]; - } - } else { - ent = htmlParseEntityRef(ctxt, &name); - if (name == NULL) { - *out++ = '&'; - if (out - buffer > buffer_size - 100) { - int indx = out - buffer; - - growBuffer(buffer); - out = &buffer[indx]; - } - } else if (ent == NULL) { - *out++ = '&'; - cur = name; - while (*cur != 0) { - if (out - buffer > buffer_size - 100) { - int indx = out - buffer; - - growBuffer(buffer); - out = &buffer[indx]; - } - *out++ = *cur++; - } - } else { - unsigned int c; - int bits; - - if (out - buffer > buffer_size - 100) { - int indx = out - buffer; - - growBuffer(buffer); - out = &buffer[indx]; - } - c = ent->value; - if (c < 0x80) - { *out++ = c; bits= -6; } - else if (c < 0x800) - { *out++ =((c >> 6) & 0x1F) | 0xC0; bits= 0; } - else if (c < 0x10000) - { *out++ =((c >> 12) & 0x0F) | 0xE0; bits= 6; } - else - { *out++ =((c >> 18) & 0x07) | 0xF0; bits= 12; } - - for ( ; bits >= 0; bits-= 6) { - *out++ = ((c >> bits) & 0x3F) | 0x80; - } - } - } - } else { - unsigned int c; - int bits, l; - - if (out - buffer > buffer_size - 100) { - int indx = out - buffer; - - growBuffer(buffer); - out = &buffer[indx]; - } - c = CUR_CHAR(l); - if (c < 0x80) - { *out++ = c; bits= -6; } - else if (c < 0x800) - { *out++ =((c >> 6) & 0x1F) | 0xC0; bits= 0; } - else if (c < 0x10000) - { *out++ =((c >> 12) & 0x0F) | 0xE0; bits= 6; } - else - { *out++ =((c >> 18) & 0x07) | 0xF0; bits= 12; } - - for ( ; bits >= 0; bits-= 6) { - *out++ = ((c >> bits) & 0x3F) | 0x80; - } - NEXT; - } - } - *out = 0; - return(buffer); -} - -/** - * htmlParseEntityRef: - * @ctxt: an HTML parser context - * @str: location to store the entity name - * - * parse an HTML ENTITY references - * - * [68] EntityRef ::= '&' Name ';' - * - * Returns the associated htmlEntityDescPtr if found, or NULL otherwise, - * if non-NULL *str will have to be freed by the caller. - */ -const htmlEntityDesc * -htmlParseEntityRef(htmlParserCtxtPtr ctxt, const xmlChar **str) { - const xmlChar *name; - const htmlEntityDesc * ent = NULL; - - if (str != NULL) *str = NULL; - if ((ctxt == NULL) || (ctxt->input == NULL)) return(NULL); - - if (CUR == '&') { - NEXT; - name = htmlParseName(ctxt); - if (name == NULL) { - htmlParseErr(ctxt, XML_ERR_NAME_REQUIRED, - "htmlParseEntityRef: no name\n", NULL, NULL); - } else { - GROW; - if (CUR == ';') { - if (str != NULL) - *str = name; - - /* - * Lookup the entity in the table. - */ - ent = htmlEntityLookup(name); - if (ent != NULL) /* OK that's ugly !!! */ - NEXT; - } else { - htmlParseErr(ctxt, XML_ERR_ENTITYREF_SEMICOL_MISSING, - "htmlParseEntityRef: expecting ';'\n", - NULL, NULL); - if (str != NULL) - *str = name; - } - } - } - return(ent); -} - -/** - * htmlParseAttValue: - * @ctxt: an HTML parser context - * - * parse a value for an attribute - * Note: the parser won't do substitution of entities here, this - * will be handled later in xmlStringGetNodeList, unless it was - * asked for ctxt->replaceEntities != 0 - * - * Returns the AttValue parsed or NULL. - */ - -static xmlChar * -htmlParseAttValue(htmlParserCtxtPtr ctxt) { - xmlChar *ret = NULL; - - if (CUR == '"') { - NEXT; - ret = htmlParseHTMLAttribute(ctxt, '"'); - if (CUR != '"') { - htmlParseErr(ctxt, XML_ERR_ATTRIBUTE_NOT_FINISHED, - "AttValue: \" expected\n", NULL, NULL); - } else - NEXT; - } else if (CUR == '\'') { - NEXT; - ret = htmlParseHTMLAttribute(ctxt, '\''); - if (CUR != '\'') { - htmlParseErr(ctxt, XML_ERR_ATTRIBUTE_NOT_FINISHED, - "AttValue: ' expected\n", NULL, NULL); - } else - NEXT; - } else { - /* - * That's an HTMLism, the attribute value may not be quoted - */ - ret = htmlParseHTMLAttribute(ctxt, 0); - if (ret == NULL) { - htmlParseErr(ctxt, XML_ERR_ATTRIBUTE_WITHOUT_VALUE, - "AttValue: no value found\n", NULL, NULL); - } - } - return(ret); -} - -/** - * htmlParseSystemLiteral: - * @ctxt: an HTML parser context - * - * parse an HTML Literal - * - * [11] SystemLiteral ::= ('"' [^"]* '"') | ("'" [^']* "'") - * - * Returns the SystemLiteral parsed or NULL - */ - -static xmlChar * -htmlParseSystemLiteral(htmlParserCtxtPtr ctxt) { - size_t len = 0, startPosition = 0; - xmlChar *ret = NULL; - - if (CUR == '"') { - NEXT; - - if (CUR_PTR < BASE_PTR) - return(ret); - startPosition = CUR_PTR - BASE_PTR; - - while ((IS_CHAR_CH(CUR)) && (CUR != '"')) { - NEXT; - len++; - } - if (!IS_CHAR_CH(CUR)) { - htmlParseErr(ctxt, XML_ERR_LITERAL_NOT_FINISHED, - "Unfinished SystemLiteral\n", NULL, NULL); - } else { - ret = xmlStrndup((BASE_PTR+startPosition), len); - NEXT; - } - } else if (CUR == '\'') { - NEXT; - - if (CUR_PTR < BASE_PTR) - return(ret); - startPosition = CUR_PTR - BASE_PTR; - - while ((IS_CHAR_CH(CUR)) && (CUR != '\'')) { - NEXT; - len++; - } - if (!IS_CHAR_CH(CUR)) { - htmlParseErr(ctxt, XML_ERR_LITERAL_NOT_FINISHED, - "Unfinished SystemLiteral\n", NULL, NULL); - } else { - ret = xmlStrndup((BASE_PTR+startPosition), len); - NEXT; - } - } else { - htmlParseErr(ctxt, XML_ERR_LITERAL_NOT_STARTED, - " or ' expected\n", NULL, NULL); - } - - return(ret); -} - -/** - * htmlParsePubidLiteral: - * @ctxt: an HTML parser context - * - * parse an HTML public literal - * - * [12] PubidLiteral ::= '"' PubidChar* '"' | "'" (PubidChar - "'")* "'" - * - * Returns the PubidLiteral parsed or NULL. - */ - -static xmlChar * -htmlParsePubidLiteral(htmlParserCtxtPtr ctxt) { - size_t len = 0, startPosition = 0; - xmlChar *ret = NULL; - /* - * Name ::= (Letter | '_') (NameChar)* - */ - if (CUR == '"') { - NEXT; - - if (CUR_PTR < BASE_PTR) - return(ret); - startPosition = CUR_PTR - BASE_PTR; - - while (IS_PUBIDCHAR_CH(CUR)) { - len++; - NEXT; - } - - if (CUR != '"') { - htmlParseErr(ctxt, XML_ERR_LITERAL_NOT_FINISHED, - "Unfinished PubidLiteral\n", NULL, NULL); - } else { - ret = xmlStrndup((BASE_PTR + startPosition), len); - NEXT; - } - } else if (CUR == '\'') { - NEXT; - - if (CUR_PTR < BASE_PTR) - return(ret); - startPosition = CUR_PTR - BASE_PTR; - - while ((IS_PUBIDCHAR_CH(CUR)) && (CUR != '\'')){ - len++; - NEXT; - } - - if (CUR != '\'') { - htmlParseErr(ctxt, XML_ERR_LITERAL_NOT_FINISHED, - "Unfinished PubidLiteral\n", NULL, NULL); - } else { - ret = xmlStrndup((BASE_PTR + startPosition), len); - NEXT; - } - } else { - htmlParseErr(ctxt, XML_ERR_LITERAL_NOT_STARTED, - "PubidLiteral \" or ' expected\n", NULL, NULL); - } - - return(ret); -} - -/** - * htmlParseScript: - * @ctxt: an HTML parser context - * - * parse the content of an HTML SCRIPT or STYLE element - * http://www.w3.org/TR/html4/sgml/dtd.html#Script - * http://www.w3.org/TR/html4/sgml/dtd.html#StyleSheet - * http://www.w3.org/TR/html4/types.html#type-script - * http://www.w3.org/TR/html4/types.html#h-6.15 - * http://www.w3.org/TR/html4/appendix/notes.html#h-B.3.2.1 - * - * Script data ( %Script; in the DTD) can be the content of the SCRIPT - * element and the value of intrinsic event attributes. User agents must - * not evaluate script data as HTML markup but instead must pass it on as - * data to a script engine. - * NOTES: - * - The content is passed like CDATA - * - the attributes for style and scripting "onXXX" are also described - * as CDATA but SGML allows entities references in attributes so their - * processing is identical as other attributes - */ -static void -htmlParseScript(htmlParserCtxtPtr ctxt) { - xmlChar buf[HTML_PARSER_BIG_BUFFER_SIZE + 5]; - int nbchar = 0; - int cur,l; - - SHRINK; - cur = CUR_CHAR(l); - while (IS_CHAR_CH(cur)) { - if ((cur == '<') && (NXT(1) == '/')) { - /* - * One should break here, the specification is clear: - * Authors should therefore escape "</" within the content. - * Escape mechanisms are specific to each scripting or - * style sheet language. - * - * In recovery mode, only break if end tag match the - * current tag, effectively ignoring all tags inside the - * script/style block and treating the entire block as - * CDATA. - */ - if (ctxt->recovery) { - if (xmlStrncasecmp(ctxt->name, ctxt->input->cur+2, - xmlStrlen(ctxt->name)) == 0) - { - break; /* while */ - } else { - htmlParseErr(ctxt, XML_ERR_TAG_NAME_MISMATCH, - "Element %s embeds close tag\n", - ctxt->name, NULL); - } - } else { - if (((NXT(2) >= 'A') && (NXT(2) <= 'Z')) || - ((NXT(2) >= 'a') && (NXT(2) <= 'z'))) - { - break; /* while */ - } - } - } - COPY_BUF(l,buf,nbchar,cur); - if (nbchar >= HTML_PARSER_BIG_BUFFER_SIZE) { - if (ctxt->sax->cdataBlock!= NULL) { - /* - * Insert as CDATA, which is the same as HTML_PRESERVE_NODE - */ - ctxt->sax->cdataBlock(ctxt->userData, buf, nbchar); - } else if (ctxt->sax->characters != NULL) { - ctxt->sax->characters(ctxt->userData, buf, nbchar); - } - nbchar = 0; - } - GROW; - NEXTL(l); - cur = CUR_CHAR(l); - } - - if ((!(IS_CHAR_CH(cur))) && (!((cur == 0) && (ctxt->progressive)))) { - htmlParseErrInt(ctxt, XML_ERR_INVALID_CHAR, - "Invalid char in CDATA 0x%X\n", cur); - if (ctxt->input->cur < ctxt->input->end) { - NEXT; - } - } - - if ((nbchar != 0) && (ctxt->sax != NULL) && (!ctxt->disableSAX)) { - if (ctxt->sax->cdataBlock!= NULL) { - /* - * Insert as CDATA, which is the same as HTML_PRESERVE_NODE - */ - ctxt->sax->cdataBlock(ctxt->userData, buf, nbchar); - } else if (ctxt->sax->characters != NULL) { - ctxt->sax->characters(ctxt->userData, buf, nbchar); - } - } -} - - -/** - * htmlParseCharDataInternal: - * @ctxt: an HTML parser context - * @readahead: optional read ahead character in ascii range - * - * parse a CharData section. - * if we are within a CDATA section ']]>' marks an end of section. - * - * [14] CharData ::= [^<&]* - ([^<&]* ']]>' [^<&]*) - */ - -static void -htmlParseCharDataInternal(htmlParserCtxtPtr ctxt, int readahead) { - xmlChar buf[HTML_PARSER_BIG_BUFFER_SIZE + 6]; - int nbchar = 0; - int cur, l; - int chunk = 0; - - if (readahead) - buf[nbchar++] = readahead; - - SHRINK; - cur = CUR_CHAR(l); - while (((cur != '<') || (ctxt->token == '<')) && - ((cur != '&') || (ctxt->token == '&')) && - (cur != 0)) { - if (!(IS_CHAR(cur))) { - htmlParseErrInt(ctxt, XML_ERR_INVALID_CHAR, - "Invalid char in CDATA 0x%X\n", cur); - } else { - COPY_BUF(l,buf,nbchar,cur); - } - if (nbchar >= HTML_PARSER_BIG_BUFFER_SIZE) { - /* - * Ok the segment is to be consumed as chars. - */ - if ((ctxt->sax != NULL) && (!ctxt->disableSAX)) { - if (areBlanks(ctxt, buf, nbchar)) { - if (ctxt->keepBlanks) { - if (ctxt->sax->characters != NULL) - ctxt->sax->characters(ctxt->userData, buf, nbchar); - } else { - if (ctxt->sax->ignorableWhitespace != NULL) - ctxt->sax->ignorableWhitespace(ctxt->userData, - buf, nbchar); - } - } else { - htmlCheckParagraph(ctxt); - if (ctxt->sax->characters != NULL) - ctxt->sax->characters(ctxt->userData, buf, nbchar); - } - } - nbchar = 0; - } - NEXTL(l); - chunk++; - if (chunk > HTML_PARSER_BUFFER_SIZE) { - chunk = 0; - SHRINK; - GROW; - } - cur = CUR_CHAR(l); - if (cur == 0) { - SHRINK; - GROW; - cur = CUR_CHAR(l); - } - } - if (nbchar != 0) { - buf[nbchar] = 0; - - /* - * Ok the segment is to be consumed as chars. - */ - if ((ctxt->sax != NULL) && (!ctxt->disableSAX)) { - if (areBlanks(ctxt, buf, nbchar)) { - if (ctxt->keepBlanks) { - if (ctxt->sax->characters != NULL) - ctxt->sax->characters(ctxt->userData, buf, nbchar); - } else { - if (ctxt->sax->ignorableWhitespace != NULL) - ctxt->sax->ignorableWhitespace(ctxt->userData, - buf, nbchar); - } - } else { - htmlCheckParagraph(ctxt); - if (ctxt->sax->characters != NULL) - ctxt->sax->characters(ctxt->userData, buf, nbchar); - } - } - } else { - /* - * Loop detection - */ - if (cur == 0) - ctxt->instate = XML_PARSER_EOF; - } -} - -/** - * htmlParseCharData: - * @ctxt: an HTML parser context - * - * parse a CharData section. - * if we are within a CDATA section ']]>' marks an end of section. - * - * [14] CharData ::= [^<&]* - ([^<&]* ']]>' [^<&]*) - */ - -static void -htmlParseCharData(htmlParserCtxtPtr ctxt) { - htmlParseCharDataInternal(ctxt, 0); -} - -/** - * htmlParseExternalID: - * @ctxt: an HTML parser context - * @publicID: a xmlChar** receiving PubidLiteral - * - * Parse an External ID or a Public ID - * - * [75] ExternalID ::= 'SYSTEM' S SystemLiteral - * | 'PUBLIC' S PubidLiteral S SystemLiteral - * - * [83] PublicID ::= 'PUBLIC' S PubidLiteral - * - * Returns the function returns SystemLiteral and in the second - * case publicID receives PubidLiteral, is strict is off - * it is possible to return NULL and have publicID set. - */ - -static xmlChar * -htmlParseExternalID(htmlParserCtxtPtr ctxt, xmlChar **publicID) { - xmlChar *URI = NULL; - - if ((UPPER == 'S') && (UPP(1) == 'Y') && - (UPP(2) == 'S') && (UPP(3) == 'T') && - (UPP(4) == 'E') && (UPP(5) == 'M')) { - SKIP(6); - if (!IS_BLANK_CH(CUR)) { - htmlParseErr(ctxt, XML_ERR_SPACE_REQUIRED, - "Space required after 'SYSTEM'\n", NULL, NULL); - } - SKIP_BLANKS; - URI = htmlParseSystemLiteral(ctxt); - if (URI == NULL) { - htmlParseErr(ctxt, XML_ERR_URI_REQUIRED, - "htmlParseExternalID: SYSTEM, no URI\n", NULL, NULL); - } - } else if ((UPPER == 'P') && (UPP(1) == 'U') && - (UPP(2) == 'B') && (UPP(3) == 'L') && - (UPP(4) == 'I') && (UPP(5) == 'C')) { - SKIP(6); - if (!IS_BLANK_CH(CUR)) { - htmlParseErr(ctxt, XML_ERR_SPACE_REQUIRED, - "Space required after 'PUBLIC'\n", NULL, NULL); - } - SKIP_BLANKS; - *publicID = htmlParsePubidLiteral(ctxt); - if (*publicID == NULL) { - htmlParseErr(ctxt, XML_ERR_PUBID_REQUIRED, - "htmlParseExternalID: PUBLIC, no Public Identifier\n", - NULL, NULL); - } - SKIP_BLANKS; - if ((CUR == '"') || (CUR == '\'')) { - URI = htmlParseSystemLiteral(ctxt); - } - } - return(URI); -} - -/** - * xmlParsePI: - * @ctxt: an XML parser context - * - * parse an XML Processing Instruction. - * - * [16] PI ::= '<?' PITarget (S (Char* - (Char* '?>' Char*)))? '?>' - */ -static void -htmlParsePI(htmlParserCtxtPtr ctxt) { - xmlChar *buf = NULL; - int len = 0; - int size = HTML_PARSER_BUFFER_SIZE; - int cur, l; - const xmlChar *target; - xmlParserInputState state; - int count = 0; - - if ((RAW == '<') && (NXT(1) == '?')) { - state = ctxt->instate; - ctxt->instate = XML_PARSER_PI; - /* - * this is a Processing Instruction. - */ - SKIP(2); - SHRINK; - - /* - * Parse the target name and check for special support like - * namespace. - */ - target = htmlParseName(ctxt); - if (target != NULL) { - if (RAW == '>') { - SKIP(1); - - /* - * SAX: PI detected. - */ - if ((ctxt->sax) && (!ctxt->disableSAX) && - (ctxt->sax->processingInstruction != NULL)) - ctxt->sax->processingInstruction(ctxt->userData, - target, NULL); - ctxt->instate = state; - return; - } - buf = (xmlChar *) xmlMallocAtomic(size * sizeof(xmlChar)); - if (buf == NULL) { - htmlErrMemory(ctxt, NULL); - ctxt->instate = state; - return; - } - cur = CUR; - if (!IS_BLANK(cur)) { - htmlParseErr(ctxt, XML_ERR_SPACE_REQUIRED, - "ParsePI: PI %s space expected\n", target, NULL); - } - SKIP_BLANKS; - cur = CUR_CHAR(l); - while (IS_CHAR(cur) && (cur != '>')) { - if (len + 5 >= size) { - xmlChar *tmp; - - size *= 2; - tmp = (xmlChar *) xmlRealloc(buf, size * sizeof(xmlChar)); - if (tmp == NULL) { - htmlErrMemory(ctxt, NULL); - xmlFree(buf); - ctxt->instate = state; - return; - } - buf = tmp; - } - count++; - if (count > 50) { - GROW; - count = 0; - } - COPY_BUF(l,buf,len,cur); - NEXTL(l); - cur = CUR_CHAR(l); - if (cur == 0) { - SHRINK; - GROW; - cur = CUR_CHAR(l); - } - } - buf[len] = 0; - if (cur != '>') { - htmlParseErr(ctxt, XML_ERR_PI_NOT_FINISHED, - "ParsePI: PI %s never end ...\n", target, NULL); - } else { - SKIP(1); - - /* - * SAX: PI detected. - */ - if ((ctxt->sax) && (!ctxt->disableSAX) && - (ctxt->sax->processingInstruction != NULL)) - ctxt->sax->processingInstruction(ctxt->userData, - target, buf); - } - xmlFree(buf); - } else { - htmlParseErr(ctxt, XML_ERR_PI_NOT_STARTED, - "PI is not started correctly", NULL, NULL); - } - ctxt->instate = state; - } -} - -/** - * htmlParseComment: - * @ctxt: an HTML parser context - * - * Parse an XML (SGML) comment <!-- .... --> - * - * [15] Comment ::= '<!--' ((Char - '-') | ('-' (Char - '-')))* '-->' - */ -static void -htmlParseComment(htmlParserCtxtPtr ctxt) { - xmlChar *buf = NULL; - int len; - int size = HTML_PARSER_BUFFER_SIZE; - int q, ql; - int r, rl; - int cur, l; - xmlParserInputState state; - - /* - * Check that there is a comment right here. - */ - if ((RAW != '<') || (NXT(1) != '!') || - (NXT(2) != '-') || (NXT(3) != '-')) return; - - state = ctxt->instate; - ctxt->instate = XML_PARSER_COMMENT; - SHRINK; - SKIP(4); - buf = (xmlChar *) xmlMallocAtomic(size * sizeof(xmlChar)); - if (buf == NULL) { - htmlErrMemory(ctxt, "buffer allocation failed\n"); - ctxt->instate = state; - return; - } - len = 0; - buf[len] = 0; - q = CUR_CHAR(ql); - if (!IS_CHAR(q)) - goto unfinished; - NEXTL(ql); - r = CUR_CHAR(rl); - if (!IS_CHAR(r)) - goto unfinished; - NEXTL(rl); - cur = CUR_CHAR(l); - while (IS_CHAR(cur) && - ((cur != '>') || - (r != '-') || (q != '-'))) { - if (len + 5 >= size) { - xmlChar *tmp; - - size *= 2; - tmp = (xmlChar *) xmlRealloc(buf, size * sizeof(xmlChar)); - if (tmp == NULL) { - xmlFree(buf); - htmlErrMemory(ctxt, "growing buffer failed\n"); - ctxt->instate = state; - return; - } - buf = tmp; - } - COPY_BUF(ql,buf,len,q); - q = r; - ql = rl; - r = cur; - rl = l; - NEXTL(l); - cur = CUR_CHAR(l); - if (cur == 0) { - SHRINK; - GROW; - cur = CUR_CHAR(l); - } - } - buf[len] = 0; - if (IS_CHAR(cur)) { - NEXT; - if ((ctxt->sax != NULL) && (ctxt->sax->comment != NULL) && - (!ctxt->disableSAX)) - ctxt->sax->comment(ctxt->userData, buf); - xmlFree(buf); - ctxt->instate = state; - return; - } - -unfinished: - htmlParseErr(ctxt, XML_ERR_COMMENT_NOT_FINISHED, - "Comment not terminated \n<!--%.50s\n", buf, NULL); - xmlFree(buf); -} - -/** - * htmlParseCharRef: - * @ctxt: an HTML parser context - * - * parse Reference declarations - * - * [66] CharRef ::= '&#' [0-9]+ ';' | - * '&#x' [0-9a-fA-F]+ ';' - * - * Returns the value parsed (as an int) - */ -int -htmlParseCharRef(htmlParserCtxtPtr ctxt) { - int val = 0; - - if ((ctxt == NULL) || (ctxt->input == NULL)) { - htmlParseErr(ctxt, XML_ERR_INTERNAL_ERROR, - "htmlParseCharRef: context error\n", - NULL, NULL); - return(0); - } - if ((CUR == '&') && (NXT(1) == '#') && - ((NXT(2) == 'x') || NXT(2) == 'X')) { - SKIP(3); - while (CUR != ';') { - if ((CUR >= '0') && (CUR <= '9')) - val = val * 16 + (CUR - '0'); - else if ((CUR >= 'a') && (CUR <= 'f')) - val = val * 16 + (CUR - 'a') + 10; - else if ((CUR >= 'A') && (CUR <= 'F')) - val = val * 16 + (CUR - 'A') + 10; - else { - htmlParseErr(ctxt, XML_ERR_INVALID_HEX_CHARREF, - "htmlParseCharRef: missing semicolon\n", - NULL, NULL); - break; - } - NEXT; - } - if (CUR == ';') - NEXT; - } else if ((CUR == '&') && (NXT(1) == '#')) { - SKIP(2); - while (CUR != ';') { - if ((CUR >= '0') && (CUR <= '9')) - val = val * 10 + (CUR - '0'); - else { - htmlParseErr(ctxt, XML_ERR_INVALID_DEC_CHARREF, - "htmlParseCharRef: missing semicolon\n", - NULL, NULL); - break; - } - NEXT; - } - if (CUR == ';') - NEXT; - } else { - htmlParseErr(ctxt, XML_ERR_INVALID_CHARREF, - "htmlParseCharRef: invalid value\n", NULL, NULL); - } - /* - * Check the value IS_CHAR ... - */ - if (IS_CHAR(val)) { - return(val); - } else { - htmlParseErrInt(ctxt, XML_ERR_INVALID_CHAR, - "htmlParseCharRef: invalid xmlChar value %d\n", - val); - } - return(0); -} - - -/** - * htmlParseDocTypeDecl: - * @ctxt: an HTML parser context - * - * parse a DOCTYPE declaration - * - * [28] doctypedecl ::= '<!DOCTYPE' S Name (S ExternalID)? S? - * ('[' (markupdecl | PEReference | S)* ']' S?)? '>' - */ - -static void -htmlParseDocTypeDecl(htmlParserCtxtPtr ctxt) { - const xmlChar *name; - xmlChar *ExternalID = NULL; - xmlChar *URI = NULL; - - /* - * We know that '<!DOCTYPE' has been detected. - */ - SKIP(9); - - SKIP_BLANKS; - - /* - * Parse the DOCTYPE name. - */ - name = htmlParseName(ctxt); - if (name == NULL) { - htmlParseErr(ctxt, XML_ERR_NAME_REQUIRED, - "htmlParseDocTypeDecl : no DOCTYPE name !\n", - NULL, NULL); - } - /* - * Check that upper(name) == "HTML" !!!!!!!!!!!!! - */ - - SKIP_BLANKS; - - /* - * Check for SystemID and ExternalID - */ - URI = htmlParseExternalID(ctxt, &ExternalID); - SKIP_BLANKS; - - /* - * We should be at the end of the DOCTYPE declaration. - */ - if (CUR != '>') { - htmlParseErr(ctxt, XML_ERR_DOCTYPE_NOT_FINISHED, - "DOCTYPE improperly terminated\n", NULL, NULL); - /* We shouldn't try to resynchronize ... */ - } - NEXT; - - /* - * Create or update the document accordingly to the DOCTYPE - */ - if ((ctxt->sax != NULL) && (ctxt->sax->internalSubset != NULL) && - (!ctxt->disableSAX)) - ctxt->sax->internalSubset(ctxt->userData, name, ExternalID, URI); - - /* - * Cleanup, since we don't use all those identifiers - */ - if (URI != NULL) xmlFree(URI); - if (ExternalID != NULL) xmlFree(ExternalID); -} - -/** - * htmlParseAttribute: - * @ctxt: an HTML parser context - * @value: a xmlChar ** used to store the value of the attribute - * - * parse an attribute - * - * [41] Attribute ::= Name Eq AttValue - * - * [25] Eq ::= S? '=' S? - * - * With namespace: - * - * [NS 11] Attribute ::= QName Eq AttValue - * - * Also the case QName == xmlns:??? is handled independently as a namespace - * definition. - * - * Returns the attribute name, and the value in *value. - */ - -static const xmlChar * -htmlParseAttribute(htmlParserCtxtPtr ctxt, xmlChar **value) { - const xmlChar *name; - xmlChar *val = NULL; - - *value = NULL; - name = htmlParseHTMLName(ctxt); - if (name == NULL) { - htmlParseErr(ctxt, XML_ERR_NAME_REQUIRED, - "error parsing attribute name\n", NULL, NULL); - return(NULL); - } - - /* - * read the value - */ - SKIP_BLANKS; - if (CUR == '=') { - NEXT; - SKIP_BLANKS; - val = htmlParseAttValue(ctxt); - } - - *value = val; - return(name); -} - -/** - * htmlCheckEncodingDirect: - * @ctxt: an HTML parser context - * @attvalue: the attribute value - * - * Checks an attribute value to detect - * the encoding - * If a new encoding is detected the parser is switched to decode - * it and pass UTF8 - */ -static void -htmlCheckEncodingDirect(htmlParserCtxtPtr ctxt, const xmlChar *encoding) { - - if ((ctxt == NULL) || (encoding == NULL) || - (ctxt->options & HTML_PARSE_IGNORE_ENC)) - return; - - /* do not change encoding */ - if (ctxt->input->encoding != NULL) - return; - - if (encoding != NULL) { - xmlCharEncoding enc; - xmlCharEncodingHandlerPtr handler; - - while ((*encoding == ' ') || (*encoding == '\t')) encoding++; - - if (ctxt->input->encoding != NULL) - xmlFree((xmlChar *) ctxt->input->encoding); - ctxt->input->encoding = xmlStrdup(encoding); - - enc = xmlParseCharEncoding((const char *) encoding); - /* - * registered set of known encodings - */ - if (enc != XML_CHAR_ENCODING_ERROR) { - if (((enc == XML_CHAR_ENCODING_UTF16LE) || - (enc == XML_CHAR_ENCODING_UTF16BE) || - (enc == XML_CHAR_ENCODING_UCS4LE) || - (enc == XML_CHAR_ENCODING_UCS4BE)) && - (ctxt->input->buf != NULL) && - (ctxt->input->buf->encoder == NULL)) { - htmlParseErr(ctxt, XML_ERR_INVALID_ENCODING, - "htmlCheckEncoding: wrong encoding meta\n", - NULL, NULL); - } else { - xmlSwitchEncoding(ctxt, enc); - } - ctxt->charset = XML_CHAR_ENCODING_UTF8; - } else { - /* - * fallback for unknown encodings - */ - handler = xmlFindCharEncodingHandler((const char *) encoding); - if (handler != NULL) { - xmlSwitchToEncoding(ctxt, handler); - ctxt->charset = XML_CHAR_ENCODING_UTF8; - } else { - htmlParseErr(ctxt, XML_ERR_UNSUPPORTED_ENCODING, - "htmlCheckEncoding: unknown encoding %s\n", - encoding, NULL); - } - } - - if ((ctxt->input->buf != NULL) && - (ctxt->input->buf->encoder != NULL) && - (ctxt->input->buf->raw != NULL) && - (ctxt->input->buf->buffer != NULL)) { - int nbchars; - int processed; - - /* - * convert as much as possible to the parser reading buffer. - */ - processed = ctxt->input->cur - ctxt->input->base; - xmlBufShrink(ctxt->input->buf->buffer, processed); - nbchars = xmlCharEncInput(ctxt->input->buf, 1); - if (nbchars < 0) { - htmlParseErr(ctxt, XML_ERR_INVALID_ENCODING, - "htmlCheckEncoding: encoder error\n", - NULL, NULL); - } - xmlBufResetInput(ctxt->input->buf->buffer, ctxt->input); - } - } -} - -/** - * htmlCheckEncoding: - * @ctxt: an HTML parser context - * @attvalue: the attribute value - * - * Checks an http-equiv attribute from a Meta tag to detect - * the encoding - * If a new encoding is detected the parser is switched to decode - * it and pass UTF8 - */ -static void -htmlCheckEncoding(htmlParserCtxtPtr ctxt, const xmlChar *attvalue) { - const xmlChar *encoding; - - if (!attvalue) - return; - - encoding = xmlStrcasestr(attvalue, BAD_CAST"charset"); - if (encoding != NULL) { - encoding += 7; - } - /* - * skip blank - */ - if (encoding && IS_BLANK_CH(*encoding)) - encoding = xmlStrcasestr(attvalue, BAD_CAST"="); - if (encoding && *encoding == '=') { - encoding ++; - htmlCheckEncodingDirect(ctxt, encoding); - } -} - -/** - * htmlCheckMeta: - * @ctxt: an HTML parser context - * @atts: the attributes values - * - * Checks an attributes from a Meta tag - */ -static void -htmlCheckMeta(htmlParserCtxtPtr ctxt, const xmlChar **atts) { - int i; - const xmlChar *att, *value; - int http = 0; - const xmlChar *content = NULL; - - if ((ctxt == NULL) || (atts == NULL)) - return; - - i = 0; - att = atts[i++]; - while (att != NULL) { - value = atts[i++]; - if ((value != NULL) && (!xmlStrcasecmp(att, BAD_CAST"http-equiv")) - && (!xmlStrcasecmp(value, BAD_CAST"Content-Type"))) - http = 1; - else if ((value != NULL) && (!xmlStrcasecmp(att, BAD_CAST"charset"))) - htmlCheckEncodingDirect(ctxt, value); - else if ((value != NULL) && (!xmlStrcasecmp(att, BAD_CAST"content"))) - content = value; - att = atts[i++]; - } - if ((http) && (content != NULL)) - htmlCheckEncoding(ctxt, content); - -} - -/** - * htmlParseStartTag: - * @ctxt: an HTML parser context - * - * parse a start of tag either for rule element or - * EmptyElement. In both case we don't parse the tag closing chars. - * - * [40] STag ::= '<' Name (S Attribute)* S? '>' - * - * [44] EmptyElemTag ::= '<' Name (S Attribute)* S? '/>' - * - * With namespace: - * - * [NS 8] STag ::= '<' QName (S Attribute)* S? '>' - * - * [NS 10] EmptyElement ::= '<' QName (S Attribute)* S? '/>' - * - * Returns 0 in case of success, -1 in case of error and 1 if discarded - */ - -static int -htmlParseStartTag(htmlParserCtxtPtr ctxt) { - const xmlChar *name; - const xmlChar *attname; - xmlChar *attvalue; - const xmlChar **atts; - int nbatts = 0; - int maxatts; - int meta = 0; - int i; - int discardtag = 0; - - if ((ctxt == NULL) || (ctxt->input == NULL)) { - htmlParseErr(ctxt, XML_ERR_INTERNAL_ERROR, - "htmlParseStartTag: context error\n", NULL, NULL); - return -1; - } - if (ctxt->instate == XML_PARSER_EOF) - return(-1); - if (CUR != '<') return -1; - NEXT; - - atts = ctxt->atts; - maxatts = ctxt->maxatts; - - GROW; - name = htmlParseHTMLName(ctxt); - if (name == NULL) { - htmlParseErr(ctxt, XML_ERR_NAME_REQUIRED, - "htmlParseStartTag: invalid element name\n", - NULL, NULL); - /* if recover preserve text on classic misconstructs */ - if ((ctxt->recovery) && ((IS_BLANK_CH(CUR)) || (CUR == '<') || - (CUR == '=') || (CUR == '>') || (((CUR >= '0') && (CUR <= '9'))))) { - htmlParseCharDataInternal(ctxt, '<'); - return(-1); - } - - - /* Dump the bogus tag like browsers do */ - while ((IS_CHAR_CH(CUR)) && (CUR != '>') && - (ctxt->instate != XML_PARSER_EOF)) - NEXT; - return -1; - } - if (xmlStrEqual(name, BAD_CAST"meta")) - meta = 1; - - /* - * Check for auto-closure of HTML elements. - */ - htmlAutoClose(ctxt, name); - - /* - * Check for implied HTML elements. - */ - htmlCheckImplied(ctxt, name); - - /* - * Avoid html at any level > 0, head at any level != 1 - * or any attempt to recurse body - */ - if ((ctxt->nameNr > 0) && (xmlStrEqual(name, BAD_CAST"html"))) { - htmlParseErr(ctxt, XML_HTML_STRUCURE_ERROR, - "htmlParseStartTag: misplaced <html> tag\n", - name, NULL); - discardtag = 1; - ctxt->depth++; - } - if ((ctxt->nameNr != 1) && - (xmlStrEqual(name, BAD_CAST"head"))) { - htmlParseErr(ctxt, XML_HTML_STRUCURE_ERROR, - "htmlParseStartTag: misplaced <head> tag\n", - name, NULL); - discardtag = 1; - ctxt->depth++; - } - if (xmlStrEqual(name, BAD_CAST"body")) { - int indx; - for (indx = 0;indx < ctxt->nameNr;indx++) { - if (xmlStrEqual(ctxt->nameTab[indx], BAD_CAST"body")) { - htmlParseErr(ctxt, XML_HTML_STRUCURE_ERROR, - "htmlParseStartTag: misplaced <body> tag\n", - name, NULL); - discardtag = 1; - ctxt->depth++; - } - } - } - - /* - * Now parse the attributes, it ends up with the ending - * - * (S Attribute)* S? - */ - SKIP_BLANKS; - while ((IS_CHAR_CH(CUR)) && - (CUR != '>') && - ((CUR != '/') || (NXT(1) != '>'))) { - long cons = ctxt->nbChars; - - GROW; - attname = htmlParseAttribute(ctxt, &attvalue); - if (attname != NULL) { - - /* - * Well formedness requires at most one declaration of an attribute - */ - for (i = 0; i < nbatts;i += 2) { - if (xmlStrEqual(atts[i], attname)) { - htmlParseErr(ctxt, XML_ERR_ATTRIBUTE_REDEFINED, - "Attribute %s redefined\n", attname, NULL); - if (attvalue != NULL) - xmlFree(attvalue); - goto failed; - } - } - - /* - * Add the pair to atts - */ - if (atts == NULL) { - maxatts = 22; /* allow for 10 attrs by default */ - atts = (const xmlChar **) - xmlMalloc(maxatts * sizeof(xmlChar *)); - if (atts == NULL) { - htmlErrMemory(ctxt, NULL); - if (attvalue != NULL) - xmlFree(attvalue); - goto failed; - } - ctxt->atts = atts; - ctxt->maxatts = maxatts; - } else if (nbatts + 4 > maxatts) { - const xmlChar **n; - - maxatts *= 2; - n = (const xmlChar **) xmlRealloc((void *) atts, - maxatts * sizeof(const xmlChar *)); - if (n == NULL) { - htmlErrMemory(ctxt, NULL); - if (attvalue != NULL) - xmlFree(attvalue); - goto failed; - } - atts = n; - ctxt->atts = atts; - ctxt->maxatts = maxatts; - } - atts[nbatts++] = attname; - atts[nbatts++] = attvalue; - atts[nbatts] = NULL; - atts[nbatts + 1] = NULL; - } - else { - if (attvalue != NULL) - xmlFree(attvalue); - /* Dump the bogus attribute string up to the next blank or - * the end of the tag. */ - while ((IS_CHAR_CH(CUR)) && - !(IS_BLANK_CH(CUR)) && (CUR != '>') && - ((CUR != '/') || (NXT(1) != '>'))) - NEXT; - } - -failed: - SKIP_BLANKS; - if (cons == ctxt->nbChars) { - htmlParseErr(ctxt, XML_ERR_INTERNAL_ERROR, - "htmlParseStartTag: problem parsing attributes\n", - NULL, NULL); - break; - } - } - - /* - * Handle specific association to the META tag - */ - if (meta && (nbatts != 0)) - htmlCheckMeta(ctxt, atts); - - /* - * SAX: Start of Element ! - */ - if (!discardtag) { - htmlnamePush(ctxt, name); - if ((ctxt->sax != NULL) && (ctxt->sax->startElement != NULL)) { - if (nbatts != 0) - ctxt->sax->startElement(ctxt->userData, name, atts); - else - ctxt->sax->startElement(ctxt->userData, name, NULL); - } - } - - if (atts != NULL) { - for (i = 1;i < nbatts;i += 2) { - if (atts[i] != NULL) - xmlFree((xmlChar *) atts[i]); - } - } - - return(discardtag); -} - -/** - * htmlParseEndTag: - * @ctxt: an HTML parser context - * - * parse an end of tag - * - * [42] ETag ::= '</' Name S? '>' - * - * With namespace - * - * [NS 9] ETag ::= '</' QName S? '>' - * - * Returns 1 if the current level should be closed. - */ - -static int -htmlParseEndTag(htmlParserCtxtPtr ctxt) -{ - const xmlChar *name; - const xmlChar *oldname; - int i, ret; - - if ((CUR != '<') || (NXT(1) != '/')) { - htmlParseErr(ctxt, XML_ERR_LTSLASH_REQUIRED, - "htmlParseEndTag: '</' not found\n", NULL, NULL); - return (0); - } - SKIP(2); - - name = htmlParseHTMLName(ctxt); - if (name == NULL) - return (0); - /* - * We should definitely be at the ending "S? '>'" part - */ - SKIP_BLANKS; - if ((!IS_CHAR_CH(CUR)) || (CUR != '>')) { - htmlParseErr(ctxt, XML_ERR_GT_REQUIRED, - "End tag : expected '>'\n", NULL, NULL); - if (ctxt->recovery) { - /* - * We're not at the ending > !! - * Error, unless in recover mode where we search forwards - * until we find a > - */ - while (CUR != '\0' && CUR != '>') NEXT; - NEXT; - } - } else - NEXT; - - /* - * if we ignored misplaced tags in htmlParseStartTag don't pop them - * out now. - */ - if ((ctxt->depth > 0) && - (xmlStrEqual(name, BAD_CAST "html") || - xmlStrEqual(name, BAD_CAST "body") || - xmlStrEqual(name, BAD_CAST "head"))) { - ctxt->depth--; - return (0); - } - - /* - * If the name read is not one of the element in the parsing stack - * then return, it's just an error. - */ - for (i = (ctxt->nameNr - 1); i >= 0; i--) { - if (xmlStrEqual(name, ctxt->nameTab[i])) - break; - } - if (i < 0) { - htmlParseErr(ctxt, XML_ERR_TAG_NAME_MISMATCH, - "Unexpected end tag : %s\n", name, NULL); - return (0); - } - - - /* - * Check for auto-closure of HTML elements. - */ - - htmlAutoCloseOnClose(ctxt, name); - - /* - * Well formedness constraints, opening and closing must match. - * With the exception that the autoclose may have popped stuff out - * of the stack. - */ - if (!xmlStrEqual(name, ctxt->name)) { - if ((ctxt->name != NULL) && (!xmlStrEqual(ctxt->name, name))) { - htmlParseErr(ctxt, XML_ERR_TAG_NAME_MISMATCH, - "Opening and ending tag mismatch: %s and %s\n", - name, ctxt->name); - } - } - - /* - * SAX: End of Tag - */ - oldname = ctxt->name; - if ((oldname != NULL) && (xmlStrEqual(oldname, name))) { - if ((ctxt->sax != NULL) && (ctxt->sax->endElement != NULL)) - ctxt->sax->endElement(ctxt->userData, name); - htmlNodeInfoPop(ctxt); - htmlnamePop(ctxt); - ret = 1; - } else { - ret = 0; - } - - return (ret); -} - - -/** - * htmlParseReference: - * @ctxt: an HTML parser context - * - * parse and handle entity references in content, - * this will end-up in a call to character() since this is either a - * CharRef, or a predefined entity. - */ -static void -htmlParseReference(htmlParserCtxtPtr ctxt) { - const htmlEntityDesc * ent; - xmlChar out[6]; - const xmlChar *name; - if (CUR != '&') return; - - if (NXT(1) == '#') { - unsigned int c; - int bits, i = 0; - - c = htmlParseCharRef(ctxt); - if (c == 0) - return; - - if (c < 0x80) { out[i++]= c; bits= -6; } - else if (c < 0x800) { out[i++]=((c >> 6) & 0x1F) | 0xC0; bits= 0; } - else if (c < 0x10000) { out[i++]=((c >> 12) & 0x0F) | 0xE0; bits= 6; } - else { out[i++]=((c >> 18) & 0x07) | 0xF0; bits= 12; } - - for ( ; bits >= 0; bits-= 6) { - out[i++]= ((c >> bits) & 0x3F) | 0x80; - } - out[i] = 0; - - htmlCheckParagraph(ctxt); - if ((ctxt->sax != NULL) && (ctxt->sax->characters != NULL)) - ctxt->sax->characters(ctxt->userData, out, i); - } else { - ent = htmlParseEntityRef(ctxt, &name); - if (name == NULL) { - htmlCheckParagraph(ctxt); - if ((ctxt->sax != NULL) && (ctxt->sax->characters != NULL)) - ctxt->sax->characters(ctxt->userData, BAD_CAST "&", 1); - return; - } - if ((ent == NULL) || !(ent->value > 0)) { - htmlCheckParagraph(ctxt); - if ((ctxt->sax != NULL) && (ctxt->sax->characters != NULL)) { - ctxt->sax->characters(ctxt->userData, BAD_CAST "&", 1); - ctxt->sax->characters(ctxt->userData, name, xmlStrlen(name)); - /* ctxt->sax->characters(ctxt->userData, BAD_CAST ";", 1); */ - } - } else { - unsigned int c; - int bits, i = 0; - - c = ent->value; - if (c < 0x80) - { out[i++]= c; bits= -6; } - else if (c < 0x800) - { out[i++]=((c >> 6) & 0x1F) | 0xC0; bits= 0; } - else if (c < 0x10000) - { out[i++]=((c >> 12) & 0x0F) | 0xE0; bits= 6; } - else - { out[i++]=((c >> 18) & 0x07) | 0xF0; bits= 12; } - - for ( ; bits >= 0; bits-= 6) { - out[i++]= ((c >> bits) & 0x3F) | 0x80; - } - out[i] = 0; - - htmlCheckParagraph(ctxt); - if ((ctxt->sax != NULL) && (ctxt->sax->characters != NULL)) - ctxt->sax->characters(ctxt->userData, out, i); - } - } -} - -/** - * htmlParseContent: - * @ctxt: an HTML parser context - * - * Parse a content: comment, sub-element, reference or text. - * Kept for compatibility with old code - */ - -static void -htmlParseContent(htmlParserCtxtPtr ctxt) { - xmlChar *currentNode; - int depth; - const xmlChar *name; - - currentNode = xmlStrdup(ctxt->name); - depth = ctxt->nameNr; - while (1) { - long cons = ctxt->nbChars; - - GROW; - - if (ctxt->instate == XML_PARSER_EOF) - break; - - /* - * Our tag or one of it's parent or children is ending. - */ - if ((CUR == '<') && (NXT(1) == '/')) { - if (htmlParseEndTag(ctxt) && - ((currentNode != NULL) || (ctxt->nameNr == 0))) { - if (currentNode != NULL) - xmlFree(currentNode); - return; - } - continue; /* while */ - } - - else if ((CUR == '<') && - ((IS_ASCII_LETTER(NXT(1))) || - (NXT(1) == '_') || (NXT(1) == ':'))) { - name = htmlParseHTMLName_nonInvasive(ctxt); - if (name == NULL) { - htmlParseErr(ctxt, XML_ERR_NAME_REQUIRED, - "htmlParseStartTag: invalid element name\n", - NULL, NULL); - /* Dump the bogus tag like browsers do */ - while ((IS_CHAR_CH(CUR)) && (CUR != '>')) - NEXT; - - if (currentNode != NULL) - xmlFree(currentNode); - return; - } - - if (ctxt->name != NULL) { - if (htmlCheckAutoClose(name, ctxt->name) == 1) { - htmlAutoClose(ctxt, name); - continue; - } - } - } - - /* - * Has this node been popped out during parsing of - * the next element - */ - if ((ctxt->nameNr > 0) && (depth >= ctxt->nameNr) && - (!xmlStrEqual(currentNode, ctxt->name))) - { - if (currentNode != NULL) xmlFree(currentNode); - return; - } - - if ((CUR != 0) && ((xmlStrEqual(currentNode, BAD_CAST"script")) || - (xmlStrEqual(currentNode, BAD_CAST"style")))) { - /* - * Handle SCRIPT/STYLE separately - */ - htmlParseScript(ctxt); - } else { - /* - * Sometimes DOCTYPE arrives in the middle of the document - */ - if ((CUR == '<') && (NXT(1) == '!') && - (UPP(2) == 'D') && (UPP(3) == 'O') && - (UPP(4) == 'C') && (UPP(5) == 'T') && - (UPP(6) == 'Y') && (UPP(7) == 'P') && - (UPP(8) == 'E')) { - htmlParseErr(ctxt, XML_HTML_STRUCURE_ERROR, - "Misplaced DOCTYPE declaration\n", - BAD_CAST "DOCTYPE" , NULL); - htmlParseDocTypeDecl(ctxt); - } - - /* - * First case : a comment - */ - if ((CUR == '<') && (NXT(1) == '!') && - (NXT(2) == '-') && (NXT(3) == '-')) { - htmlParseComment(ctxt); - } - - /* - * Second case : a Processing Instruction. - */ - else if ((CUR == '<') && (NXT(1) == '?')) { - htmlParsePI(ctxt); - } - - /* - * Third case : a sub-element. - */ - else if (CUR == '<') { - htmlParseElement(ctxt); - } - - /* - * Fourth case : a reference. If if has not been resolved, - * parsing returns it's Name, create the node - */ - else if (CUR == '&') { - htmlParseReference(ctxt); - } - - /* - * Fifth case : end of the resource - */ - else if (CUR == 0) { - htmlAutoCloseOnEnd(ctxt); - break; - } - - /* - * Last case, text. Note that References are handled directly. - */ - else { - htmlParseCharData(ctxt); - } - - if (cons == ctxt->nbChars) { - if (ctxt->node != NULL) { - htmlParseErr(ctxt, XML_ERR_INTERNAL_ERROR, - "detected an error in element content\n", - NULL, NULL); - } - break; - } - } - GROW; - } - if (currentNode != NULL) xmlFree(currentNode); -} - -/** - * htmlParseElement: - * @ctxt: an HTML parser context - * - * parse an HTML element, this is highly recursive - * this is kept for compatibility with previous code versions - * - * [39] element ::= EmptyElemTag | STag content ETag - * - * [41] Attribute ::= Name Eq AttValue - */ - -void -htmlParseElement(htmlParserCtxtPtr ctxt) { - const xmlChar *name; - xmlChar *currentNode = NULL; - const htmlElemDesc * info; - htmlParserNodeInfo node_info; - int failed; - int depth; - const xmlChar *oldptr; - - if ((ctxt == NULL) || (ctxt->input == NULL)) { - htmlParseErr(ctxt, XML_ERR_INTERNAL_ERROR, - "htmlParseElement: context error\n", NULL, NULL); - return; - } - - if (ctxt->instate == XML_PARSER_EOF) - return; - - /* Capture start position */ - if (ctxt->record_info) { - node_info.begin_pos = ctxt->input->consumed + - (CUR_PTR - ctxt->input->base); - node_info.begin_line = ctxt->input->line; - } - - failed = htmlParseStartTag(ctxt); - name = ctxt->name; - if ((failed == -1) || (name == NULL)) { - if (CUR == '>') - NEXT; - return; - } - - /* - * Lookup the info for that element. - */ - info = htmlTagLookup(name); - if (info == NULL) { - htmlParseErr(ctxt, XML_HTML_UNKNOWN_TAG, - "Tag %s invalid\n", name, NULL); - } - - /* - * Check for an Empty Element labeled the XML/SGML way - */ - if ((CUR == '/') && (NXT(1) == '>')) { - SKIP(2); - if ((ctxt->sax != NULL) && (ctxt->sax->endElement != NULL)) - ctxt->sax->endElement(ctxt->userData, name); - htmlnamePop(ctxt); - return; - } - - if (CUR == '>') { - NEXT; - } else { - htmlParseErr(ctxt, XML_ERR_GT_REQUIRED, - "Couldn't find end of Start Tag %s\n", name, NULL); - - /* - * end of parsing of this node. - */ - if (xmlStrEqual(name, ctxt->name)) { - nodePop(ctxt); - htmlnamePop(ctxt); - } - - /* - * Capture end position and add node - */ - if (ctxt->record_info) { - node_info.end_pos = ctxt->input->consumed + - (CUR_PTR - ctxt->input->base); - node_info.end_line = ctxt->input->line; - node_info.node = ctxt->node; - xmlParserAddNodeInfo(ctxt, &node_info); - } - return; - } - - /* - * Check for an Empty Element from DTD definition - */ - if ((info != NULL) && (info->empty)) { - if ((ctxt->sax != NULL) && (ctxt->sax->endElement != NULL)) - ctxt->sax->endElement(ctxt->userData, name); - htmlnamePop(ctxt); - return; - } - - /* - * Parse the content of the element: - */ - currentNode = xmlStrdup(ctxt->name); - depth = ctxt->nameNr; - while (IS_CHAR_CH(CUR)) { - oldptr = ctxt->input->cur; - htmlParseContent(ctxt); - if (oldptr==ctxt->input->cur) break; - if (ctxt->nameNr < depth) break; - } - - /* - * Capture end position and add node - */ - if ( currentNode != NULL && ctxt->record_info ) { - node_info.end_pos = ctxt->input->consumed + - (CUR_PTR - ctxt->input->base); - node_info.end_line = ctxt->input->line; - node_info.node = ctxt->node; - xmlParserAddNodeInfo(ctxt, &node_info); - } - if (!IS_CHAR_CH(CUR)) { - htmlAutoCloseOnEnd(ctxt); - } - - if (currentNode != NULL) - xmlFree(currentNode); -} - -static void -htmlParserFinishElementParsing(htmlParserCtxtPtr ctxt) { - /* - * Capture end position and add node - */ - if ( ctxt->node != NULL && ctxt->record_info ) { - ctxt->nodeInfo->end_pos = ctxt->input->consumed + - (CUR_PTR - ctxt->input->base); - ctxt->nodeInfo->end_line = ctxt->input->line; - ctxt->nodeInfo->node = ctxt->node; - xmlParserAddNodeInfo(ctxt, ctxt->nodeInfo); - htmlNodeInfoPop(ctxt); - } - if (!IS_CHAR_CH(CUR)) { - htmlAutoCloseOnEnd(ctxt); - } -} - -/** - * htmlParseElementInternal: - * @ctxt: an HTML parser context - * - * parse an HTML element, new version, non recursive - * - * [39] element ::= EmptyElemTag | STag content ETag - * - * [41] Attribute ::= Name Eq AttValue - */ - -static void -htmlParseElementInternal(htmlParserCtxtPtr ctxt) { - const xmlChar *name; - const htmlElemDesc * info; - htmlParserNodeInfo node_info = { 0, }; - int failed; - - if ((ctxt == NULL) || (ctxt->input == NULL)) { - htmlParseErr(ctxt, XML_ERR_INTERNAL_ERROR, - "htmlParseElementInternal: context error\n", NULL, NULL); - return; - } - - if (ctxt->instate == XML_PARSER_EOF) - return; - - /* Capture start position */ - if (ctxt->record_info) { - node_info.begin_pos = ctxt->input->consumed + - (CUR_PTR - ctxt->input->base); - node_info.begin_line = ctxt->input->line; - } - - failed = htmlParseStartTag(ctxt); - name = ctxt->name; - if ((failed == -1) || (name == NULL)) { - if (CUR == '>') - NEXT; - return; - } - - /* - * Lookup the info for that element. - */ - info = htmlTagLookup(name); - if (info == NULL) { - htmlParseErr(ctxt, XML_HTML_UNKNOWN_TAG, - "Tag %s invalid\n", name, NULL); - } - - /* - * Check for an Empty Element labeled the XML/SGML way - */ - if ((CUR == '/') && (NXT(1) == '>')) { - SKIP(2); - if ((ctxt->sax != NULL) && (ctxt->sax->endElement != NULL)) - ctxt->sax->endElement(ctxt->userData, name); - htmlnamePop(ctxt); - return; - } - - if (CUR == '>') { - NEXT; - } else { - htmlParseErr(ctxt, XML_ERR_GT_REQUIRED, - "Couldn't find end of Start Tag %s\n", name, NULL); - - /* - * end of parsing of this node. - */ - if (xmlStrEqual(name, ctxt->name)) { - nodePop(ctxt); - htmlnamePop(ctxt); - } - - if (ctxt->record_info) - htmlNodeInfoPush(ctxt, &node_info); - htmlParserFinishElementParsing(ctxt); - return; - } - - /* - * Check for an Empty Element from DTD definition - */ - if ((info != NULL) && (info->empty)) { - if ((ctxt->sax != NULL) && (ctxt->sax->endElement != NULL)) - ctxt->sax->endElement(ctxt->userData, name); - htmlnamePop(ctxt); - return; - } - - if (ctxt->record_info) - htmlNodeInfoPush(ctxt, &node_info); -} - -/** - * htmlParseContentInternal: - * @ctxt: an HTML parser context - * - * Parse a content: comment, sub-element, reference or text. - * New version for non recursive htmlParseElementInternal - */ - -static void -htmlParseContentInternal(htmlParserCtxtPtr ctxt) { - xmlChar *currentNode; - int depth; - const xmlChar *name; - - currentNode = xmlStrdup(ctxt->name); - depth = ctxt->nameNr; - while (1) { - long cons = ctxt->nbChars; - - GROW; - - if (ctxt->instate == XML_PARSER_EOF) - break; - - /* - * Our tag or one of it's parent or children is ending. - */ - if ((CUR == '<') && (NXT(1) == '/')) { - if (htmlParseEndTag(ctxt) && - ((currentNode != NULL) || (ctxt->nameNr == 0))) { - if (currentNode != NULL) - xmlFree(currentNode); - - currentNode = xmlStrdup(ctxt->name); - depth = ctxt->nameNr; - } - continue; /* while */ - } - - else if ((CUR == '<') && - ((IS_ASCII_LETTER(NXT(1))) || - (NXT(1) == '_') || (NXT(1) == ':'))) { - name = htmlParseHTMLName_nonInvasive(ctxt); - if (name == NULL) { - htmlParseErr(ctxt, XML_ERR_NAME_REQUIRED, - "htmlParseStartTag: invalid element name\n", - NULL, NULL); - /* Dump the bogus tag like browsers do */ - while ((IS_CHAR_CH(CUR)) && (CUR != '>')) - NEXT; - - htmlParserFinishElementParsing(ctxt); - if (currentNode != NULL) - xmlFree(currentNode); - - currentNode = xmlStrdup(ctxt->name); - depth = ctxt->nameNr; - continue; - } - - if (ctxt->name != NULL) { - if (htmlCheckAutoClose(name, ctxt->name) == 1) { - htmlAutoClose(ctxt, name); - continue; - } - } - } - - /* - * Has this node been popped out during parsing of - * the next element - */ - if ((ctxt->nameNr > 0) && (depth >= ctxt->nameNr) && - (!xmlStrEqual(currentNode, ctxt->name))) - { - htmlParserFinishElementParsing(ctxt); - if (currentNode != NULL) xmlFree(currentNode); - - currentNode = xmlStrdup(ctxt->name); - depth = ctxt->nameNr; - continue; - } - - if ((CUR != 0) && ((xmlStrEqual(currentNode, BAD_CAST"script")) || - (xmlStrEqual(currentNode, BAD_CAST"style")))) { - /* - * Handle SCRIPT/STYLE separately - */ - htmlParseScript(ctxt); - } else { - /* - * Sometimes DOCTYPE arrives in the middle of the document - */ - if ((CUR == '<') && (NXT(1) == '!') && - (UPP(2) == 'D') && (UPP(3) == 'O') && - (UPP(4) == 'C') && (UPP(5) == 'T') && - (UPP(6) == 'Y') && (UPP(7) == 'P') && - (UPP(8) == 'E')) { - htmlParseErr(ctxt, XML_HTML_STRUCURE_ERROR, - "Misplaced DOCTYPE declaration\n", - BAD_CAST "DOCTYPE" , NULL); - htmlParseDocTypeDecl(ctxt); - } - - /* - * First case : a comment - */ - if ((CUR == '<') && (NXT(1) == '!') && - (NXT(2) == '-') && (NXT(3) == '-')) { - htmlParseComment(ctxt); - } - - /* - * Second case : a Processing Instruction. - */ - else if ((CUR == '<') && (NXT(1) == '?')) { - htmlParsePI(ctxt); - } - - /* - * Third case : a sub-element. - */ - else if (CUR == '<') { - htmlParseElementInternal(ctxt); - if (currentNode != NULL) xmlFree(currentNode); - - currentNode = xmlStrdup(ctxt->name); - depth = ctxt->nameNr; - } - - /* - * Fourth case : a reference. If if has not been resolved, - * parsing returns it's Name, create the node - */ - else if (CUR == '&') { - htmlParseReference(ctxt); - } - - /* - * Fifth case : end of the resource - */ - else if (CUR == 0) { - htmlAutoCloseOnEnd(ctxt); - break; - } - - /* - * Last case, text. Note that References are handled directly. - */ - else { - htmlParseCharData(ctxt); - } - - if (cons == ctxt->nbChars) { - if (ctxt->node != NULL) { - htmlParseErr(ctxt, XML_ERR_INTERNAL_ERROR, - "detected an error in element content\n", - NULL, NULL); - } - break; - } - } - GROW; - } - if (currentNode != NULL) xmlFree(currentNode); -} - -/** - * htmlParseContent: - * @ctxt: an HTML parser context - * - * Parse a content: comment, sub-element, reference or text. - * This is the entry point when called from parser.c - */ - -void -__htmlParseContent(void *ctxt) { - if (ctxt != NULL) - htmlParseContentInternal((htmlParserCtxtPtr) ctxt); -} - -/** - * htmlParseDocument: - * @ctxt: an HTML parser context - * - * parse an HTML document (and build a tree if using the standard SAX - * interface). - * - * Returns 0, -1 in case of error. the parser context is augmented - * as a result of the parsing. - */ - -int -htmlParseDocument(htmlParserCtxtPtr ctxt) { - xmlChar start[4]; - xmlCharEncoding enc; - xmlDtdPtr dtd; - - xmlInitParser(); - - htmlDefaultSAXHandlerInit(); - - if ((ctxt == NULL) || (ctxt->input == NULL)) { - htmlParseErr(ctxt, XML_ERR_INTERNAL_ERROR, - "htmlParseDocument: context error\n", NULL, NULL); - return(XML_ERR_INTERNAL_ERROR); - } - ctxt->html = 1; - ctxt->linenumbers = 1; - GROW; - /* - * SAX: beginning of the document processing. - */ - if ((ctxt->sax) && (ctxt->sax->setDocumentLocator)) - ctxt->sax->setDocumentLocator(ctxt->userData, &xmlDefaultSAXLocator); - - if ((ctxt->encoding == (const xmlChar *)XML_CHAR_ENCODING_NONE) && - ((ctxt->input->end - ctxt->input->cur) >= 4)) { - /* - * Get the 4 first bytes and decode the charset - * if enc != XML_CHAR_ENCODING_NONE - * plug some encoding conversion routines. - */ - start[0] = RAW; - start[1] = NXT(1); - start[2] = NXT(2); - start[3] = NXT(3); - enc = xmlDetectCharEncoding(&start[0], 4); - if (enc != XML_CHAR_ENCODING_NONE) { - xmlSwitchEncoding(ctxt, enc); - } - } - - /* - * Wipe out everything which is before the first '<' - */ - SKIP_BLANKS; - if (CUR == 0) { - htmlParseErr(ctxt, XML_ERR_DOCUMENT_EMPTY, - "Document is empty\n", NULL, NULL); - } - - if ((ctxt->sax) && (ctxt->sax->startDocument) && (!ctxt->disableSAX)) - ctxt->sax->startDocument(ctxt->userData); - - - /* - * Parse possible comments and PIs before any content - */ - while (((CUR == '<') && (NXT(1) == '!') && - (NXT(2) == '-') && (NXT(3) == '-')) || - ((CUR == '<') && (NXT(1) == '?'))) { - htmlParseComment(ctxt); - htmlParsePI(ctxt); - SKIP_BLANKS; - } - - - /* - * Then possibly doc type declaration(s) and more Misc - * (doctypedecl Misc*)? - */ - if ((CUR == '<') && (NXT(1) == '!') && - (UPP(2) == 'D') && (UPP(3) == 'O') && - (UPP(4) == 'C') && (UPP(5) == 'T') && - (UPP(6) == 'Y') && (UPP(7) == 'P') && - (UPP(8) == 'E')) { - htmlParseDocTypeDecl(ctxt); - } - SKIP_BLANKS; - - /* - * Parse possible comments and PIs before any content - */ - while (((CUR == '<') && (NXT(1) == '!') && - (NXT(2) == '-') && (NXT(3) == '-')) || - ((CUR == '<') && (NXT(1) == '?'))) { - htmlParseComment(ctxt); - htmlParsePI(ctxt); - SKIP_BLANKS; - } - - /* - * Time to start parsing the tree itself - */ - htmlParseContentInternal(ctxt); - - /* - * autoclose - */ - if (CUR == 0) - htmlAutoCloseOnEnd(ctxt); - - - /* - * SAX: end of the document processing. - */ - if ((ctxt->sax) && (ctxt->sax->endDocument != NULL)) - ctxt->sax->endDocument(ctxt->userData); - - if ((!(ctxt->options & HTML_PARSE_NODEFDTD)) && (ctxt->myDoc != NULL)) { - dtd = xmlGetIntSubset(ctxt->myDoc); - if (dtd == NULL) - ctxt->myDoc->intSubset = - xmlCreateIntSubset(ctxt->myDoc, BAD_CAST "html", - BAD_CAST "-//W3C//DTD HTML 4.0 Transitional//EN", - BAD_CAST "http://www.w3.org/TR/REC-html40/loose.dtd"); - } - if (! ctxt->wellFormed) return(-1); - return(0); -} - - -/************************************************************************ - * * - * Parser contexts handling * - * * - ************************************************************************/ - -/** - * htmlInitParserCtxt: - * @ctxt: an HTML parser context - * - * Initialize a parser context - * - * Returns 0 in case of success and -1 in case of error - */ - -static int -htmlInitParserCtxt(htmlParserCtxtPtr ctxt) -{ - htmlSAXHandler *sax; - - if (ctxt == NULL) return(-1); - memset(ctxt, 0, sizeof(htmlParserCtxt)); - - ctxt->dict = xmlDictCreate(); - if (ctxt->dict == NULL) { - htmlErrMemory(NULL, "htmlInitParserCtxt: out of memory\n"); - return(-1); - } - sax = (htmlSAXHandler *) xmlMalloc(sizeof(htmlSAXHandler)); - if (sax == NULL) { - htmlErrMemory(NULL, "htmlInitParserCtxt: out of memory\n"); - return(-1); - } - else - memset(sax, 0, sizeof(htmlSAXHandler)); - - /* Allocate the Input stack */ - ctxt->inputTab = (htmlParserInputPtr *) - xmlMalloc(5 * sizeof(htmlParserInputPtr)); - if (ctxt->inputTab == NULL) { - htmlErrMemory(NULL, "htmlInitParserCtxt: out of memory\n"); - ctxt->inputNr = 0; - ctxt->inputMax = 0; - ctxt->input = NULL; - return(-1); - } - ctxt->inputNr = 0; - ctxt->inputMax = 5; - ctxt->input = NULL; - ctxt->version = NULL; - ctxt->encoding = NULL; - ctxt->standalone = -1; - ctxt->instate = XML_PARSER_START; - - /* Allocate the Node stack */ - ctxt->nodeTab = (htmlNodePtr *) xmlMalloc(10 * sizeof(htmlNodePtr)); - if (ctxt->nodeTab == NULL) { - htmlErrMemory(NULL, "htmlInitParserCtxt: out of memory\n"); - ctxt->nodeNr = 0; - ctxt->nodeMax = 0; - ctxt->node = NULL; - ctxt->inputNr = 0; - ctxt->inputMax = 0; - ctxt->input = NULL; - return(-1); - } - ctxt->nodeNr = 0; - ctxt->nodeMax = 10; - ctxt->node = NULL; - - /* Allocate the Name stack */ - ctxt->nameTab = (const xmlChar **) xmlMalloc(10 * sizeof(xmlChar *)); - if (ctxt->nameTab == NULL) { - htmlErrMemory(NULL, "htmlInitParserCtxt: out of memory\n"); - ctxt->nameNr = 0; - ctxt->nameMax = 0; - ctxt->name = NULL; - ctxt->nodeNr = 0; - ctxt->nodeMax = 0; - ctxt->node = NULL; - ctxt->inputNr = 0; - ctxt->inputMax = 0; - ctxt->input = NULL; - return(-1); - } - ctxt->nameNr = 0; - ctxt->nameMax = 10; - ctxt->name = NULL; - - ctxt->nodeInfoTab = NULL; - ctxt->nodeInfoNr = 0; - ctxt->nodeInfoMax = 0; - - if (sax == NULL) ctxt->sax = (xmlSAXHandlerPtr) &htmlDefaultSAXHandler; - else { - ctxt->sax = sax; - memcpy(sax, &htmlDefaultSAXHandler, sizeof(xmlSAXHandlerV1)); - } - ctxt->userData = ctxt; - ctxt->myDoc = NULL; - ctxt->wellFormed = 1; - ctxt->replaceEntities = 0; - ctxt->linenumbers = xmlLineNumbersDefaultValue; - ctxt->html = 1; - ctxt->vctxt.finishDtd = XML_CTXT_FINISH_DTD_0; - ctxt->vctxt.userData = ctxt; - ctxt->vctxt.error = xmlParserValidityError; - ctxt->vctxt.warning = xmlParserValidityWarning; - ctxt->record_info = 0; - ctxt->validate = 0; - ctxt->nbChars = 0; - ctxt->checkIndex = 0; - ctxt->catalogs = NULL; - xmlInitNodeInfoSeq(&ctxt->node_seq); - return(0); -} - -/** - * htmlFreeParserCtxt: - * @ctxt: an HTML parser context - * - * Free all the memory used by a parser context. However the parsed - * document in ctxt->myDoc is not freed. - */ - -void -htmlFreeParserCtxt(htmlParserCtxtPtr ctxt) -{ - xmlFreeParserCtxt(ctxt); -} - -/** - * htmlNewParserCtxt: - * - * Allocate and initialize a new parser context. - * - * Returns the htmlParserCtxtPtr or NULL in case of allocation error - */ - -htmlParserCtxtPtr -htmlNewParserCtxt(void) -{ - xmlParserCtxtPtr ctxt; - - ctxt = (xmlParserCtxtPtr) xmlMalloc(sizeof(xmlParserCtxt)); - if (ctxt == NULL) { - htmlErrMemory(NULL, "NewParserCtxt: out of memory\n"); - return(NULL); - } - memset(ctxt, 0, sizeof(xmlParserCtxt)); - if (htmlInitParserCtxt(ctxt) < 0) { - htmlFreeParserCtxt(ctxt); - return(NULL); - } - return(ctxt); -} - -/** - * htmlCreateMemoryParserCtxt: - * @buffer: a pointer to a char array - * @size: the size of the array - * - * Create a parser context for an HTML in-memory document. - * - * Returns the new parser context or NULL - */ -htmlParserCtxtPtr -htmlCreateMemoryParserCtxt(const char *buffer, int size) { - xmlParserCtxtPtr ctxt; - xmlParserInputPtr input; - xmlParserInputBufferPtr buf; - - if (buffer == NULL) - return(NULL); - if (size <= 0) - return(NULL); - - ctxt = htmlNewParserCtxt(); - if (ctxt == NULL) - return(NULL); - - buf = xmlParserInputBufferCreateMem(buffer, size, XML_CHAR_ENCODING_NONE); - if (buf == NULL) return(NULL); - - input = xmlNewInputStream(ctxt); - if (input == NULL) { - xmlFreeParserCtxt(ctxt); - return(NULL); - } - - input->filename = NULL; - input->buf = buf; - xmlBufResetInput(buf->buffer, input); - - inputPush(ctxt, input); - return(ctxt); -} - -/** - * htmlCreateDocParserCtxt: - * @cur: a pointer to an array of xmlChar - * @encoding: a free form C string describing the HTML document encoding, or NULL - * - * Create a parser context for an HTML document. - * - * TODO: check the need to add encoding handling there - * - * Returns the new parser context or NULL - */ -static htmlParserCtxtPtr -htmlCreateDocParserCtxt(const xmlChar *cur, const char *encoding) { - int len; - htmlParserCtxtPtr ctxt; - - if (cur == NULL) - return(NULL); - len = xmlStrlen(cur); - ctxt = htmlCreateMemoryParserCtxt((char *)cur, len); - if (ctxt == NULL) - return(NULL); - - if (encoding != NULL) { - xmlCharEncoding enc; - xmlCharEncodingHandlerPtr handler; - - if (ctxt->input->encoding != NULL) - xmlFree((xmlChar *) ctxt->input->encoding); - ctxt->input->encoding = xmlStrdup((const xmlChar *) encoding); - - enc = xmlParseCharEncoding(encoding); - /* - * registered set of known encodings - */ - if (enc != XML_CHAR_ENCODING_ERROR) { - xmlSwitchEncoding(ctxt, enc); - if (ctxt->errNo == XML_ERR_UNSUPPORTED_ENCODING) { - htmlParseErr(ctxt, XML_ERR_UNSUPPORTED_ENCODING, - "Unsupported encoding %s\n", - (const xmlChar *) encoding, NULL); - } - } else { - /* - * fallback for unknown encodings - */ - handler = xmlFindCharEncodingHandler((const char *) encoding); - if (handler != NULL) { - xmlSwitchToEncoding(ctxt, handler); - } else { - htmlParseErr(ctxt, XML_ERR_UNSUPPORTED_ENCODING, - "Unsupported encoding %s\n", - (const xmlChar *) encoding, NULL); - } - } - } - return(ctxt); -} - -#ifdef LIBXML_PUSH_ENABLED -/************************************************************************ - * * - * Progressive parsing interfaces * - * * - ************************************************************************/ - -/** - * htmlParseLookupSequence: - * @ctxt: an HTML parser context - * @first: the first char to lookup - * @next: the next char to lookup or zero - * @third: the next char to lookup or zero - * @comment: flag to force checking inside comments - * - * Try to find if a sequence (first, next, third) or just (first next) or - * (first) is available in the input stream. - * This function has a side effect of (possibly) incrementing ctxt->checkIndex - * to avoid rescanning sequences of bytes, it DOES change the state of the - * parser, do not use liberally. - * This is basically similar to xmlParseLookupSequence() - * - * Returns the index to the current parsing point if the full sequence - * is available, -1 otherwise. - */ -static int -htmlParseLookupSequence(htmlParserCtxtPtr ctxt, xmlChar first, - xmlChar next, xmlChar third, int iscomment, - int ignoreattrval) -{ - int base, len; - htmlParserInputPtr in; - const xmlChar *buf; - int incomment = 0; - int invalue = 0; - char valdellim = 0x0; - - in = ctxt->input; - if (in == NULL) - return (-1); - - base = in->cur - in->base; - if (base < 0) - return (-1); - - if (ctxt->checkIndex > base) - base = ctxt->checkIndex; - - if (in->buf == NULL) { - buf = in->base; - len = in->length; - } else { - buf = xmlBufContent(in->buf->buffer); - len = xmlBufUse(in->buf->buffer); - } - - /* take into account the sequence length */ - if (third) - len -= 2; - else if (next) - len--; - for (; base < len; base++) { - if ((!incomment) && (base + 4 < len) && (!iscomment)) { - if ((buf[base] == '<') && (buf[base + 1] == '!') && - (buf[base + 2] == '-') && (buf[base + 3] == '-')) { - incomment = 1; - /* do not increment past <! - some people use <!--> */ - base += 2; - } - } - if (ignoreattrval) { - if (buf[base] == '"' || buf[base] == '\'') { - if (invalue) { - if (buf[base] == valdellim) { - invalue = 0; - continue; - } - } else { - valdellim = buf[base]; - invalue = 1; - continue; - } - } else if (invalue) { - continue; - } - } - if (incomment) { - if (base + 3 > len) - return (-1); - if ((buf[base] == '-') && (buf[base + 1] == '-') && - (buf[base + 2] == '>')) { - incomment = 0; - base += 2; - } - continue; - } - if (buf[base] == first) { - if (third != 0) { - if ((buf[base + 1] != next) || (buf[base + 2] != third)) - continue; - } else if (next != 0) { - if (buf[base + 1] != next) - continue; - } - ctxt->checkIndex = 0; -#ifdef DEBUG_PUSH - if (next == 0) - xmlGenericError(xmlGenericErrorContext, - "HPP: lookup '%c' found at %d\n", - first, base); - else if (third == 0) - xmlGenericError(xmlGenericErrorContext, - "HPP: lookup '%c%c' found at %d\n", - first, next, base); - else - xmlGenericError(xmlGenericErrorContext, - "HPP: lookup '%c%c%c' found at %d\n", - first, next, third, base); -#endif - return (base - (in->cur - in->base)); - } - } - if ((!incomment) && (!invalue)) - ctxt->checkIndex = base; -#ifdef DEBUG_PUSH - if (next == 0) - xmlGenericError(xmlGenericErrorContext, - "HPP: lookup '%c' failed\n", first); - else if (third == 0) - xmlGenericError(xmlGenericErrorContext, - "HPP: lookup '%c%c' failed\n", first, next); - else - xmlGenericError(xmlGenericErrorContext, - "HPP: lookup '%c%c%c' failed\n", first, next, - third); -#endif - return (-1); -} - -/** - * htmlParseLookupChars: - * @ctxt: an HTML parser context - * @stop: Array of chars, which stop the lookup. - * @stopLen: Length of stop-Array - * - * Try to find if any char of the stop-Array is available in the input - * stream. - * This function has a side effect of (possibly) incrementing ctxt->checkIndex - * to avoid rescanning sequences of bytes, it DOES change the state of the - * parser, do not use liberally. - * - * Returns the index to the current parsing point if a stopChar - * is available, -1 otherwise. - */ -static int -htmlParseLookupChars(htmlParserCtxtPtr ctxt, const xmlChar * stop, - int stopLen) -{ - int base, len; - htmlParserInputPtr in; - const xmlChar *buf; - int incomment = 0; - int i; - - in = ctxt->input; - if (in == NULL) - return (-1); - - base = in->cur - in->base; - if (base < 0) - return (-1); - - if (ctxt->checkIndex > base) - base = ctxt->checkIndex; - - if (in->buf == NULL) { - buf = in->base; - len = in->length; - } else { - buf = xmlBufContent(in->buf->buffer); - len = xmlBufUse(in->buf->buffer); - } - - for (; base < len; base++) { - if (!incomment && (base + 4 < len)) { - if ((buf[base] == '<') && (buf[base + 1] == '!') && - (buf[base + 2] == '-') && (buf[base + 3] == '-')) { - incomment = 1; - /* do not increment past <! - some people use <!--> */ - base += 2; - } - } - if (incomment) { - if (base + 3 > len) - return (-1); - if ((buf[base] == '-') && (buf[base + 1] == '-') && - (buf[base + 2] == '>')) { - incomment = 0; - base += 2; - } - continue; - } - for (i = 0; i < stopLen; ++i) { - if (buf[base] == stop[i]) { - ctxt->checkIndex = 0; - return (base - (in->cur - in->base)); - } - } - } - ctxt->checkIndex = base; - return (-1); -} - -/** - * htmlParseTryOrFinish: - * @ctxt: an HTML parser context - * @terminate: last chunk indicator - * - * Try to progress on parsing - * - * Returns zero if no parsing was possible - */ -static int -htmlParseTryOrFinish(htmlParserCtxtPtr ctxt, int terminate) { - int ret = 0; - htmlParserInputPtr in; - int avail = 0; - xmlChar cur, next; - - htmlParserNodeInfo node_info; - -#ifdef DEBUG_PUSH - switch (ctxt->instate) { - case XML_PARSER_EOF: - xmlGenericError(xmlGenericErrorContext, - "HPP: try EOF\n"); break; - case XML_PARSER_START: - xmlGenericError(xmlGenericErrorContext, - "HPP: try START\n"); break; - case XML_PARSER_MISC: - xmlGenericError(xmlGenericErrorContext, - "HPP: try MISC\n");break; - case XML_PARSER_COMMENT: - xmlGenericError(xmlGenericErrorContext, - "HPP: try COMMENT\n");break; - case XML_PARSER_PROLOG: - xmlGenericError(xmlGenericErrorContext, - "HPP: try PROLOG\n");break; - case XML_PARSER_START_TAG: - xmlGenericError(xmlGenericErrorContext, - "HPP: try START_TAG\n");break; - case XML_PARSER_CONTENT: - xmlGenericError(xmlGenericErrorContext, - "HPP: try CONTENT\n");break; - case XML_PARSER_CDATA_SECTION: - xmlGenericError(xmlGenericErrorContext, - "HPP: try CDATA_SECTION\n");break; - case XML_PARSER_END_TAG: - xmlGenericError(xmlGenericErrorContext, - "HPP: try END_TAG\n");break; - case XML_PARSER_ENTITY_DECL: - xmlGenericError(xmlGenericErrorContext, - "HPP: try ENTITY_DECL\n");break; - case XML_PARSER_ENTITY_VALUE: - xmlGenericError(xmlGenericErrorContext, - "HPP: try ENTITY_VALUE\n");break; - case XML_PARSER_ATTRIBUTE_VALUE: - xmlGenericError(xmlGenericErrorContext, - "HPP: try ATTRIBUTE_VALUE\n");break; - case XML_PARSER_DTD: - xmlGenericError(xmlGenericErrorContext, - "HPP: try DTD\n");break; - case XML_PARSER_EPILOG: - xmlGenericError(xmlGenericErrorContext, - "HPP: try EPILOG\n");break; - case XML_PARSER_PI: - xmlGenericError(xmlGenericErrorContext, - "HPP: try PI\n");break; - case XML_PARSER_SYSTEM_LITERAL: - xmlGenericError(xmlGenericErrorContext, - "HPP: try SYSTEM_LITERAL\n");break; - } -#endif - - while (1) { - - in = ctxt->input; - if (in == NULL) break; - if (in->buf == NULL) - avail = in->length - (in->cur - in->base); - else - avail = xmlBufUse(in->buf->buffer) - (in->cur - in->base); - if ((avail == 0) && (terminate)) { - htmlAutoCloseOnEnd(ctxt); - if ((ctxt->nameNr == 0) && (ctxt->instate != XML_PARSER_EOF)) { - /* - * SAX: end of the document processing. - */ - ctxt->instate = XML_PARSER_EOF; - if ((ctxt->sax) && (ctxt->sax->endDocument != NULL)) - ctxt->sax->endDocument(ctxt->userData); - } - } - if (avail < 1) - goto done; - cur = in->cur[0]; - if (cur == 0) { - SKIP(1); - continue; - } - - switch (ctxt->instate) { - case XML_PARSER_EOF: - /* - * Document parsing is done ! - */ - goto done; - case XML_PARSER_START: - /* - * Very first chars read from the document flow. - */ - cur = in->cur[0]; - if (IS_BLANK_CH(cur)) { - SKIP_BLANKS; - if (in->buf == NULL) - avail = in->length - (in->cur - in->base); - else - avail = xmlBufUse(in->buf->buffer) - (in->cur - in->base); - } - if ((ctxt->sax) && (ctxt->sax->setDocumentLocator)) - ctxt->sax->setDocumentLocator(ctxt->userData, - &xmlDefaultSAXLocator); - if ((ctxt->sax) && (ctxt->sax->startDocument) && - (!ctxt->disableSAX)) - ctxt->sax->startDocument(ctxt->userData); - - cur = in->cur[0]; - next = in->cur[1]; - if ((cur == '<') && (next == '!') && - (UPP(2) == 'D') && (UPP(3) == 'O') && - (UPP(4) == 'C') && (UPP(5) == 'T') && - (UPP(6) == 'Y') && (UPP(7) == 'P') && - (UPP(8) == 'E')) { - if ((!terminate) && - (htmlParseLookupSequence(ctxt, '>', 0, 0, 0, 1) < 0)) - goto done; -#ifdef DEBUG_PUSH - xmlGenericError(xmlGenericErrorContext, - "HPP: Parsing internal subset\n"); -#endif - htmlParseDocTypeDecl(ctxt); - ctxt->instate = XML_PARSER_PROLOG; -#ifdef DEBUG_PUSH - xmlGenericError(xmlGenericErrorContext, - "HPP: entering PROLOG\n"); -#endif - } else { - ctxt->instate = XML_PARSER_MISC; -#ifdef DEBUG_PUSH - xmlGenericError(xmlGenericErrorContext, - "HPP: entering MISC\n"); -#endif - } - break; - case XML_PARSER_MISC: - SKIP_BLANKS; - if (in->buf == NULL) - avail = in->length - (in->cur - in->base); - else - avail = xmlBufUse(in->buf->buffer) - (in->cur - in->base); - /* - * no chars in buffer - */ - if (avail < 1) - goto done; - /* - * not enouth chars in buffer - */ - if (avail < 2) { - if (!terminate) - goto done; - else - next = ' '; - } else { - next = in->cur[1]; - } - cur = in->cur[0]; - if ((cur == '<') && (next == '!') && - (in->cur[2] == '-') && (in->cur[3] == '-')) { - if ((!terminate) && - (htmlParseLookupSequence(ctxt, '-', '-', '>', 1, 1) < 0)) - goto done; -#ifdef DEBUG_PUSH - xmlGenericError(xmlGenericErrorContext, - "HPP: Parsing Comment\n"); -#endif - htmlParseComment(ctxt); - ctxt->instate = XML_PARSER_MISC; - } else if ((cur == '<') && (next == '?')) { - if ((!terminate) && - (htmlParseLookupSequence(ctxt, '>', 0, 0, 0, 1) < 0)) - goto done; -#ifdef DEBUG_PUSH - xmlGenericError(xmlGenericErrorContext, - "HPP: Parsing PI\n"); -#endif - htmlParsePI(ctxt); - ctxt->instate = XML_PARSER_MISC; - } else if ((cur == '<') && (next == '!') && - (UPP(2) == 'D') && (UPP(3) == 'O') && - (UPP(4) == 'C') && (UPP(5) == 'T') && - (UPP(6) == 'Y') && (UPP(7) == 'P') && - (UPP(8) == 'E')) { - if ((!terminate) && - (htmlParseLookupSequence(ctxt, '>', 0, 0, 0, 1) < 0)) - goto done; -#ifdef DEBUG_PUSH - xmlGenericError(xmlGenericErrorContext, - "HPP: Parsing internal subset\n"); -#endif - htmlParseDocTypeDecl(ctxt); - ctxt->instate = XML_PARSER_PROLOG; -#ifdef DEBUG_PUSH - xmlGenericError(xmlGenericErrorContext, - "HPP: entering PROLOG\n"); -#endif - } else if ((cur == '<') && (next == '!') && - (avail < 9)) { - goto done; - } else { - ctxt->instate = XML_PARSER_START_TAG; -#ifdef DEBUG_PUSH - xmlGenericError(xmlGenericErrorContext, - "HPP: entering START_TAG\n"); -#endif - } - break; - case XML_PARSER_PROLOG: - SKIP_BLANKS; - if (in->buf == NULL) - avail = in->length - (in->cur - in->base); - else - avail = xmlBufUse(in->buf->buffer) - (in->cur - in->base); - if (avail < 2) - goto done; - cur = in->cur[0]; - next = in->cur[1]; - if ((cur == '<') && (next == '!') && - (in->cur[2] == '-') && (in->cur[3] == '-')) { - if ((!terminate) && - (htmlParseLookupSequence(ctxt, '-', '-', '>', 1, 1) < 0)) - goto done; -#ifdef DEBUG_PUSH - xmlGenericError(xmlGenericErrorContext, - "HPP: Parsing Comment\n"); -#endif - htmlParseComment(ctxt); - ctxt->instate = XML_PARSER_PROLOG; - } else if ((cur == '<') && (next == '?')) { - if ((!terminate) && - (htmlParseLookupSequence(ctxt, '>', 0, 0, 0, 1) < 0)) - goto done; -#ifdef DEBUG_PUSH - xmlGenericError(xmlGenericErrorContext, - "HPP: Parsing PI\n"); -#endif - htmlParsePI(ctxt); - ctxt->instate = XML_PARSER_PROLOG; - } else if ((cur == '<') && (next == '!') && - (avail < 4)) { - goto done; - } else { - ctxt->instate = XML_PARSER_START_TAG; -#ifdef DEBUG_PUSH - xmlGenericError(xmlGenericErrorContext, - "HPP: entering START_TAG\n"); -#endif - } - break; - case XML_PARSER_EPILOG: - if (in->buf == NULL) - avail = in->length - (in->cur - in->base); - else - avail = xmlBufUse(in->buf->buffer) - (in->cur - in->base); - if (avail < 1) - goto done; - cur = in->cur[0]; - if (IS_BLANK_CH(cur)) { - htmlParseCharData(ctxt); - goto done; - } - if (avail < 2) - goto done; - next = in->cur[1]; - if ((cur == '<') && (next == '!') && - (in->cur[2] == '-') && (in->cur[3] == '-')) { - if ((!terminate) && - (htmlParseLookupSequence(ctxt, '-', '-', '>', 1, 1) < 0)) - goto done; -#ifdef DEBUG_PUSH - xmlGenericError(xmlGenericErrorContext, - "HPP: Parsing Comment\n"); -#endif - htmlParseComment(ctxt); - ctxt->instate = XML_PARSER_EPILOG; - } else if ((cur == '<') && (next == '?')) { - if ((!terminate) && - (htmlParseLookupSequence(ctxt, '>', 0, 0, 0, 1) < 0)) - goto done; -#ifdef DEBUG_PUSH - xmlGenericError(xmlGenericErrorContext, - "HPP: Parsing PI\n"); -#endif - htmlParsePI(ctxt); - ctxt->instate = XML_PARSER_EPILOG; - } else if ((cur == '<') && (next == '!') && - (avail < 4)) { - goto done; - } else { - ctxt->errNo = XML_ERR_DOCUMENT_END; - ctxt->wellFormed = 0; - ctxt->instate = XML_PARSER_EOF; -#ifdef DEBUG_PUSH - xmlGenericError(xmlGenericErrorContext, - "HPP: entering EOF\n"); -#endif - if ((ctxt->sax) && (ctxt->sax->endDocument != NULL)) - ctxt->sax->endDocument(ctxt->userData); - goto done; - } - break; - case XML_PARSER_START_TAG: { - const xmlChar *name; - int failed; - const htmlElemDesc * info; - - /* - * no chars in buffer - */ - if (avail < 1) - goto done; - /* - * not enouth chars in buffer - */ - if (avail < 2) { - if (!terminate) - goto done; - else - next = ' '; - } else { - next = in->cur[1]; - } - cur = in->cur[0]; - if (cur != '<') { - ctxt->instate = XML_PARSER_CONTENT; -#ifdef DEBUG_PUSH - xmlGenericError(xmlGenericErrorContext, - "HPP: entering CONTENT\n"); -#endif - break; - } - if (next == '/') { - ctxt->instate = XML_PARSER_END_TAG; - ctxt->checkIndex = 0; -#ifdef DEBUG_PUSH - xmlGenericError(xmlGenericErrorContext, - "HPP: entering END_TAG\n"); -#endif - break; - } - if ((!terminate) && - (htmlParseLookupSequence(ctxt, '>', 0, 0, 0, 1) < 0)) - goto done; - - /* Capture start position */ - if (ctxt->record_info) { - node_info.begin_pos = ctxt->input->consumed + - (CUR_PTR - ctxt->input->base); - node_info.begin_line = ctxt->input->line; - } - - - failed = htmlParseStartTag(ctxt); - name = ctxt->name; - if ((failed == -1) || - (name == NULL)) { - if (CUR == '>') - NEXT; - break; - } - - /* - * Lookup the info for that element. - */ - info = htmlTagLookup(name); - if (info == NULL) { - htmlParseErr(ctxt, XML_HTML_UNKNOWN_TAG, - "Tag %s invalid\n", name, NULL); - } - - /* - * Check for an Empty Element labeled the XML/SGML way - */ - if ((CUR == '/') && (NXT(1) == '>')) { - SKIP(2); - if ((ctxt->sax != NULL) && (ctxt->sax->endElement != NULL)) - ctxt->sax->endElement(ctxt->userData, name); - htmlnamePop(ctxt); - ctxt->instate = XML_PARSER_CONTENT; -#ifdef DEBUG_PUSH - xmlGenericError(xmlGenericErrorContext, - "HPP: entering CONTENT\n"); -#endif - break; - } - - if (CUR == '>') { - NEXT; - } else { - htmlParseErr(ctxt, XML_ERR_GT_REQUIRED, - "Couldn't find end of Start Tag %s\n", - name, NULL); - - /* - * end of parsing of this node. - */ - if (xmlStrEqual(name, ctxt->name)) { - nodePop(ctxt); - htmlnamePop(ctxt); - } - - if (ctxt->record_info) - htmlNodeInfoPush(ctxt, &node_info); - - ctxt->instate = XML_PARSER_CONTENT; -#ifdef DEBUG_PUSH - xmlGenericError(xmlGenericErrorContext, - "HPP: entering CONTENT\n"); -#endif - break; - } - - /* - * Check for an Empty Element from DTD definition - */ - if ((info != NULL) && (info->empty)) { - if ((ctxt->sax != NULL) && (ctxt->sax->endElement != NULL)) - ctxt->sax->endElement(ctxt->userData, name); - htmlnamePop(ctxt); - } - - if (ctxt->record_info) - htmlNodeInfoPush(ctxt, &node_info); - - ctxt->instate = XML_PARSER_CONTENT; -#ifdef DEBUG_PUSH - xmlGenericError(xmlGenericErrorContext, - "HPP: entering CONTENT\n"); -#endif - break; - } - case XML_PARSER_CONTENT: { - long cons; - /* - * Handle preparsed entities and charRef - */ - if (ctxt->token != 0) { - xmlChar chr[2] = { 0 , 0 } ; - - chr[0] = (xmlChar) ctxt->token; - htmlCheckParagraph(ctxt); - if ((ctxt->sax != NULL) && (ctxt->sax->characters != NULL)) - ctxt->sax->characters(ctxt->userData, chr, 1); - ctxt->token = 0; - ctxt->checkIndex = 0; - } - if ((avail == 1) && (terminate)) { - cur = in->cur[0]; - if ((cur != '<') && (cur != '&')) { - if (ctxt->sax != NULL) { - if (IS_BLANK_CH(cur)) { - if (ctxt->keepBlanks) { - if (ctxt->sax->characters != NULL) - ctxt->sax->characters( - ctxt->userData, &in->cur[0], 1); - } else { - if (ctxt->sax->ignorableWhitespace != NULL) - ctxt->sax->ignorableWhitespace( - ctxt->userData, &in->cur[0], 1); - } - } else { - htmlCheckParagraph(ctxt); - if (ctxt->sax->characters != NULL) - ctxt->sax->characters( - ctxt->userData, &in->cur[0], 1); - } - } - ctxt->token = 0; - ctxt->checkIndex = 0; - in->cur++; - break; - } - } - if (avail < 2) - goto done; - cur = in->cur[0]; - next = in->cur[1]; - cons = ctxt->nbChars; - if ((xmlStrEqual(ctxt->name, BAD_CAST"script")) || - (xmlStrEqual(ctxt->name, BAD_CAST"style"))) { - /* - * Handle SCRIPT/STYLE separately - */ - if (!terminate) { - int idx; - xmlChar val; - - idx = htmlParseLookupSequence(ctxt, '<', '/', 0, 0, 0); - if (idx < 0) - goto done; - val = in->cur[idx + 2]; - if (val == 0) /* bad cut of input */ - goto done; - } - htmlParseScript(ctxt); - if ((cur == '<') && (next == '/')) { - ctxt->instate = XML_PARSER_END_TAG; - ctxt->checkIndex = 0; -#ifdef DEBUG_PUSH - xmlGenericError(xmlGenericErrorContext, - "HPP: entering END_TAG\n"); -#endif - break; - } - } else { - /* - * Sometimes DOCTYPE arrives in the middle of the document - */ - if ((cur == '<') && (next == '!') && - (UPP(2) == 'D') && (UPP(3) == 'O') && - (UPP(4) == 'C') && (UPP(5) == 'T') && - (UPP(6) == 'Y') && (UPP(7) == 'P') && - (UPP(8) == 'E')) { - if ((!terminate) && - (htmlParseLookupSequence(ctxt, '>', 0, 0, 0, 1) < 0)) - goto done; - htmlParseErr(ctxt, XML_HTML_STRUCURE_ERROR, - "Misplaced DOCTYPE declaration\n", - BAD_CAST "DOCTYPE" , NULL); - htmlParseDocTypeDecl(ctxt); - } else if ((cur == '<') && (next == '!') && - (in->cur[2] == '-') && (in->cur[3] == '-')) { - if ((!terminate) && - (htmlParseLookupSequence( - ctxt, '-', '-', '>', 1, 1) < 0)) - goto done; -#ifdef DEBUG_PUSH - xmlGenericError(xmlGenericErrorContext, - "HPP: Parsing Comment\n"); -#endif - htmlParseComment(ctxt); - ctxt->instate = XML_PARSER_CONTENT; - } else if ((cur == '<') && (next == '?')) { - if ((!terminate) && - (htmlParseLookupSequence(ctxt, '>', 0, 0, 0, 1) < 0)) - goto done; -#ifdef DEBUG_PUSH - xmlGenericError(xmlGenericErrorContext, - "HPP: Parsing PI\n"); -#endif - htmlParsePI(ctxt); - ctxt->instate = XML_PARSER_CONTENT; - } else if ((cur == '<') && (next == '!') && (avail < 4)) { - goto done; - } else if ((cur == '<') && (next == '/')) { - ctxt->instate = XML_PARSER_END_TAG; - ctxt->checkIndex = 0; -#ifdef DEBUG_PUSH - xmlGenericError(xmlGenericErrorContext, - "HPP: entering END_TAG\n"); -#endif - break; - } else if (cur == '<') { - ctxt->instate = XML_PARSER_START_TAG; - ctxt->checkIndex = 0; -#ifdef DEBUG_PUSH - xmlGenericError(xmlGenericErrorContext, - "HPP: entering START_TAG\n"); -#endif - break; - } else if (cur == '&') { - if ((!terminate) && - (htmlParseLookupChars(ctxt, - BAD_CAST "; >/", 4) < 0)) - goto done; -#ifdef DEBUG_PUSH - xmlGenericError(xmlGenericErrorContext, - "HPP: Parsing Reference\n"); -#endif - /* TODO: check generation of subtrees if noent !!! */ - htmlParseReference(ctxt); - } else { - /* - * check that the text sequence is complete - * before handing out the data to the parser - * to avoid problems with erroneous end of - * data detection. - */ - if ((!terminate) && - (htmlParseLookupChars(ctxt, BAD_CAST "<&", 2) < 0)) - goto done; - ctxt->checkIndex = 0; -#ifdef DEBUG_PUSH - xmlGenericError(xmlGenericErrorContext, - "HPP: Parsing char data\n"); -#endif - htmlParseCharData(ctxt); - } - } - if (cons == ctxt->nbChars) { - if (ctxt->node != NULL) { - htmlParseErr(ctxt, XML_ERR_INTERNAL_ERROR, - "detected an error in element content\n", - NULL, NULL); - } - NEXT; - break; - } - - break; - } - case XML_PARSER_END_TAG: - if (avail < 2) - goto done; - if ((!terminate) && - (htmlParseLookupSequence(ctxt, '>', 0, 0, 0, 1) < 0)) - goto done; - htmlParseEndTag(ctxt); - if (ctxt->nameNr == 0) { - ctxt->instate = XML_PARSER_EPILOG; - } else { - ctxt->instate = XML_PARSER_CONTENT; - } - ctxt->checkIndex = 0; -#ifdef DEBUG_PUSH - xmlGenericError(xmlGenericErrorContext, - "HPP: entering CONTENT\n"); -#endif - break; - case XML_PARSER_CDATA_SECTION: - htmlParseErr(ctxt, XML_ERR_INTERNAL_ERROR, - "HPP: internal error, state == CDATA\n", - NULL, NULL); - ctxt->instate = XML_PARSER_CONTENT; - ctxt->checkIndex = 0; -#ifdef DEBUG_PUSH - xmlGenericError(xmlGenericErrorContext, - "HPP: entering CONTENT\n"); -#endif - break; - case XML_PARSER_DTD: - htmlParseErr(ctxt, XML_ERR_INTERNAL_ERROR, - "HPP: internal error, state == DTD\n", - NULL, NULL); - ctxt->instate = XML_PARSER_CONTENT; - ctxt->checkIndex = 0; -#ifdef DEBUG_PUSH - xmlGenericError(xmlGenericErrorContext, - "HPP: entering CONTENT\n"); -#endif - break; - case XML_PARSER_COMMENT: - htmlParseErr(ctxt, XML_ERR_INTERNAL_ERROR, - "HPP: internal error, state == COMMENT\n", - NULL, NULL); - ctxt->instate = XML_PARSER_CONTENT; - ctxt->checkIndex = 0; -#ifdef DEBUG_PUSH - xmlGenericError(xmlGenericErrorContext, - "HPP: entering CONTENT\n"); -#endif - break; - case XML_PARSER_PI: - htmlParseErr(ctxt, XML_ERR_INTERNAL_ERROR, - "HPP: internal error, state == PI\n", - NULL, NULL); - ctxt->instate = XML_PARSER_CONTENT; - ctxt->checkIndex = 0; -#ifdef DEBUG_PUSH - xmlGenericError(xmlGenericErrorContext, - "HPP: entering CONTENT\n"); -#endif - break; - case XML_PARSER_ENTITY_DECL: - htmlParseErr(ctxt, XML_ERR_INTERNAL_ERROR, - "HPP: internal error, state == ENTITY_DECL\n", - NULL, NULL); - ctxt->instate = XML_PARSER_CONTENT; - ctxt->checkIndex = 0; -#ifdef DEBUG_PUSH - xmlGenericError(xmlGenericErrorContext, - "HPP: entering CONTENT\n"); -#endif - break; - case XML_PARSER_ENTITY_VALUE: - htmlParseErr(ctxt, XML_ERR_INTERNAL_ERROR, - "HPP: internal error, state == ENTITY_VALUE\n", - NULL, NULL); - ctxt->instate = XML_PARSER_CONTENT; - ctxt->checkIndex = 0; -#ifdef DEBUG_PUSH - xmlGenericError(xmlGenericErrorContext, - "HPP: entering DTD\n"); -#endif - break; - case XML_PARSER_ATTRIBUTE_VALUE: - htmlParseErr(ctxt, XML_ERR_INTERNAL_ERROR, - "HPP: internal error, state == ATTRIBUTE_VALUE\n", - NULL, NULL); - ctxt->instate = XML_PARSER_START_TAG; - ctxt->checkIndex = 0; -#ifdef DEBUG_PUSH - xmlGenericError(xmlGenericErrorContext, - "HPP: entering START_TAG\n"); -#endif - break; - case XML_PARSER_SYSTEM_LITERAL: - htmlParseErr(ctxt, XML_ERR_INTERNAL_ERROR, - "HPP: internal error, state == XML_PARSER_SYSTEM_LITERAL\n", - NULL, NULL); - ctxt->instate = XML_PARSER_CONTENT; - ctxt->checkIndex = 0; -#ifdef DEBUG_PUSH - xmlGenericError(xmlGenericErrorContext, - "HPP: entering CONTENT\n"); -#endif - break; - case XML_PARSER_IGNORE: - htmlParseErr(ctxt, XML_ERR_INTERNAL_ERROR, - "HPP: internal error, state == XML_PARSER_IGNORE\n", - NULL, NULL); - ctxt->instate = XML_PARSER_CONTENT; - ctxt->checkIndex = 0; -#ifdef DEBUG_PUSH - xmlGenericError(xmlGenericErrorContext, - "HPP: entering CONTENT\n"); -#endif - break; - case XML_PARSER_PUBLIC_LITERAL: - htmlParseErr(ctxt, XML_ERR_INTERNAL_ERROR, - "HPP: internal error, state == XML_PARSER_LITERAL\n", - NULL, NULL); - ctxt->instate = XML_PARSER_CONTENT; - ctxt->checkIndex = 0; -#ifdef DEBUG_PUSH - xmlGenericError(xmlGenericErrorContext, - "HPP: entering CONTENT\n"); -#endif - break; - - } - } -done: - if ((avail == 0) && (terminate)) { - htmlAutoCloseOnEnd(ctxt); - if ((ctxt->nameNr == 0) && (ctxt->instate != XML_PARSER_EOF)) { - /* - * SAX: end of the document processing. - */ - ctxt->instate = XML_PARSER_EOF; - if ((ctxt->sax) && (ctxt->sax->endDocument != NULL)) - ctxt->sax->endDocument(ctxt->userData); - } - } - if ((!(ctxt->options & HTML_PARSE_NODEFDTD)) && (ctxt->myDoc != NULL) && - ((terminate) || (ctxt->instate == XML_PARSER_EOF) || - (ctxt->instate == XML_PARSER_EPILOG))) { - xmlDtdPtr dtd; - dtd = xmlGetIntSubset(ctxt->myDoc); - if (dtd == NULL) - ctxt->myDoc->intSubset = - xmlCreateIntSubset(ctxt->myDoc, BAD_CAST "html", - BAD_CAST "-//W3C//DTD HTML 4.0 Transitional//EN", - BAD_CAST "http://www.w3.org/TR/REC-html40/loose.dtd"); - } -#ifdef DEBUG_PUSH - xmlGenericError(xmlGenericErrorContext, "HPP: done %d\n", ret); -#endif - return(ret); -} - -/** - * htmlParseChunk: - * @ctxt: an HTML parser context - * @chunk: an char array - * @size: the size in byte of the chunk - * @terminate: last chunk indicator - * - * Parse a Chunk of memory - * - * Returns zero if no error, the xmlParserErrors otherwise. - */ -int -htmlParseChunk(htmlParserCtxtPtr ctxt, const char *chunk, int size, - int terminate) { - if ((ctxt == NULL) || (ctxt->input == NULL)) { - htmlParseErr(ctxt, XML_ERR_INTERNAL_ERROR, - "htmlParseChunk: context error\n", NULL, NULL); - return(XML_ERR_INTERNAL_ERROR); - } - if ((size > 0) && (chunk != NULL) && (ctxt->input != NULL) && - (ctxt->input->buf != NULL) && (ctxt->instate != XML_PARSER_EOF)) { - size_t base = xmlBufGetInputBase(ctxt->input->buf->buffer, ctxt->input); - size_t cur = ctxt->input->cur - ctxt->input->base; - int res; - - res = xmlParserInputBufferPush(ctxt->input->buf, size, chunk); - if (res < 0) { - ctxt->errNo = XML_PARSER_EOF; - ctxt->disableSAX = 1; - return (XML_PARSER_EOF); - } - xmlBufSetInputBaseCur(ctxt->input->buf->buffer, ctxt->input, base, cur); -#ifdef DEBUG_PUSH - xmlGenericError(xmlGenericErrorContext, "HPP: pushed %d\n", size); -#endif - -#if 0 - if ((terminate) || (ctxt->input->buf->buffer->use > 80)) - htmlParseTryOrFinish(ctxt, terminate); -#endif - } else if (ctxt->instate != XML_PARSER_EOF) { - if ((ctxt->input != NULL) && ctxt->input->buf != NULL) { - xmlParserInputBufferPtr in = ctxt->input->buf; - if ((in->encoder != NULL) && (in->buffer != NULL) && - (in->raw != NULL)) { - int nbchars; - size_t base = xmlBufGetInputBase(in->buffer, ctxt->input); - size_t current = ctxt->input->cur - ctxt->input->base; - - nbchars = xmlCharEncInput(in, terminate); - if (nbchars < 0) { - htmlParseErr(ctxt, XML_ERR_INVALID_ENCODING, - "encoder error\n", NULL, NULL); - return(XML_ERR_INVALID_ENCODING); - } - xmlBufSetInputBaseCur(in->buffer, ctxt->input, base, current); - } - } - } - htmlParseTryOrFinish(ctxt, terminate); - if (terminate) { - if ((ctxt->instate != XML_PARSER_EOF) && - (ctxt->instate != XML_PARSER_EPILOG) && - (ctxt->instate != XML_PARSER_MISC)) { - ctxt->errNo = XML_ERR_DOCUMENT_END; - ctxt->wellFormed = 0; - } - if (ctxt->instate != XML_PARSER_EOF) { - if ((ctxt->sax) && (ctxt->sax->endDocument != NULL)) - ctxt->sax->endDocument(ctxt->userData); - } - ctxt->instate = XML_PARSER_EOF; - } - return((xmlParserErrors) ctxt->errNo); -} - -/************************************************************************ - * * - * User entry points * - * * - ************************************************************************/ - -/** - * htmlCreatePushParserCtxt: - * @sax: a SAX handler - * @user_data: The user data returned on SAX callbacks - * @chunk: a pointer to an array of chars - * @size: number of chars in the array - * @filename: an optional file name or URI - * @enc: an optional encoding - * - * Create a parser context for using the HTML parser in push mode - * The value of @filename is used for fetching external entities - * and error/warning reports. - * - * Returns the new parser context or NULL - */ -htmlParserCtxtPtr -htmlCreatePushParserCtxt(htmlSAXHandlerPtr sax, void *user_data, - const char *chunk, int size, const char *filename, - xmlCharEncoding enc) { - htmlParserCtxtPtr ctxt; - htmlParserInputPtr inputStream; - xmlParserInputBufferPtr buf; - - xmlInitParser(); - - buf = xmlAllocParserInputBuffer(enc); - if (buf == NULL) return(NULL); - - ctxt = htmlNewParserCtxt(); - if (ctxt == NULL) { - xmlFreeParserInputBuffer(buf); - return(NULL); - } - if(enc==XML_CHAR_ENCODING_UTF8 || buf->encoder) - ctxt->charset=XML_CHAR_ENCODING_UTF8; - if (sax != NULL) { - if (ctxt->sax != (xmlSAXHandlerPtr) &htmlDefaultSAXHandler) - xmlFree(ctxt->sax); - ctxt->sax = (htmlSAXHandlerPtr) xmlMalloc(sizeof(htmlSAXHandler)); - if (ctxt->sax == NULL) { - xmlFree(buf); - xmlFree(ctxt); - return(NULL); - } - memcpy(ctxt->sax, sax, sizeof(htmlSAXHandler)); - if (user_data != NULL) - ctxt->userData = user_data; - } - if (filename == NULL) { - ctxt->directory = NULL; - } else { - ctxt->directory = xmlParserGetDirectory(filename); - } - - inputStream = htmlNewInputStream(ctxt); - if (inputStream == NULL) { - xmlFreeParserCtxt(ctxt); - xmlFree(buf); - return(NULL); - } - - if (filename == NULL) - inputStream->filename = NULL; - else - inputStream->filename = (char *) - xmlCanonicPath((const xmlChar *) filename); - inputStream->buf = buf; - xmlBufResetInput(buf->buffer, inputStream); - - inputPush(ctxt, inputStream); - - if ((size > 0) && (chunk != NULL) && (ctxt->input != NULL) && - (ctxt->input->buf != NULL)) { - size_t base = xmlBufGetInputBase(ctxt->input->buf->buffer, ctxt->input); - size_t cur = ctxt->input->cur - ctxt->input->base; - - xmlParserInputBufferPush(ctxt->input->buf, size, chunk); - - xmlBufSetInputBaseCur(ctxt->input->buf->buffer, ctxt->input, base, cur); -#ifdef DEBUG_PUSH - xmlGenericError(xmlGenericErrorContext, "HPP: pushed %d\n", size); -#endif - } - ctxt->progressive = 1; - - return(ctxt); -} -#endif /* LIBXML_PUSH_ENABLED */ - -/** - * htmlSAXParseDoc: - * @cur: a pointer to an array of xmlChar - * @encoding: a free form C string describing the HTML document encoding, or NULL - * @sax: the SAX handler block - * @userData: if using SAX, this pointer will be provided on callbacks. - * - * Parse an HTML in-memory document. If sax is not NULL, use the SAX callbacks - * to handle parse events. If sax is NULL, fallback to the default DOM - * behavior and return a tree. - * - * Returns the resulting document tree unless SAX is NULL or the document is - * not well formed. - */ - -htmlDocPtr -htmlSAXParseDoc(xmlChar *cur, const char *encoding, htmlSAXHandlerPtr sax, void *userData) { - htmlDocPtr ret; - htmlParserCtxtPtr ctxt; - - xmlInitParser(); - - if (cur == NULL) return(NULL); - - - ctxt = htmlCreateDocParserCtxt(cur, encoding); - if (ctxt == NULL) return(NULL); - if (sax != NULL) { - if (ctxt->sax != NULL) xmlFree (ctxt->sax); - ctxt->sax = sax; - ctxt->userData = userData; - } - - htmlParseDocument(ctxt); - ret = ctxt->myDoc; - if (sax != NULL) { - ctxt->sax = NULL; - ctxt->userData = NULL; - } - htmlFreeParserCtxt(ctxt); - - return(ret); -} - -/** - * htmlParseDoc: - * @cur: a pointer to an array of xmlChar - * @encoding: a free form C string describing the HTML document encoding, or NULL - * - * parse an HTML in-memory document and build a tree. - * - * Returns the resulting document tree - */ - -htmlDocPtr -htmlParseDoc(xmlChar *cur, const char *encoding) { - return(htmlSAXParseDoc(cur, encoding, NULL, NULL)); -} - - -/** - * htmlCreateFileParserCtxt: - * @filename: the filename - * @encoding: a free form C string describing the HTML document encoding, or NULL - * - * Create a parser context for a file content. - * Automatic support for ZLIB/Compress compressed document is provided - * by default if found at compile-time. - * - * Returns the new parser context or NULL - */ -htmlParserCtxtPtr -htmlCreateFileParserCtxt(const char *filename, const char *encoding) -{ - htmlParserCtxtPtr ctxt; - htmlParserInputPtr inputStream; - char *canonicFilename; - /* htmlCharEncoding enc; */ - xmlChar *content, *content_line = (xmlChar *) "charset="; - - if (filename == NULL) - return(NULL); - - ctxt = htmlNewParserCtxt(); - if (ctxt == NULL) { - return(NULL); - } - canonicFilename = (char *) xmlCanonicPath((const xmlChar *) filename); - if (canonicFilename == NULL) { -#ifdef LIBXML_SAX1_ENABLED - if (xmlDefaultSAXHandler.error != NULL) { - xmlDefaultSAXHandler.error(NULL, "out of memory\n"); - } -#endif - xmlFreeParserCtxt(ctxt); - return(NULL); - } - - inputStream = xmlLoadExternalEntity(canonicFilename, NULL, ctxt); - xmlFree(canonicFilename); - if (inputStream == NULL) { - xmlFreeParserCtxt(ctxt); - return(NULL); - } - - inputPush(ctxt, inputStream); - - /* set encoding */ - if (encoding) { - size_t l = strlen(encoding); - - if (l < 1000) { - content = xmlMallocAtomic (xmlStrlen(content_line) + l + 1); - if (content) { - strcpy ((char *)content, (char *)content_line); - strcat ((char *)content, (char *)encoding); - htmlCheckEncoding (ctxt, content); - xmlFree (content); - } - } - } - - return(ctxt); -} - -/** - * htmlSAXParseFile: - * @filename: the filename - * @encoding: a free form C string describing the HTML document encoding, or NULL - * @sax: the SAX handler block - * @userData: if using SAX, this pointer will be provided on callbacks. - * - * parse an HTML file and build a tree. Automatic support for ZLIB/Compress - * compressed document is provided by default if found at compile-time. - * It use the given SAX function block to handle the parsing callback. - * If sax is NULL, fallback to the default DOM tree building routines. - * - * Returns the resulting document tree unless SAX is NULL or the document is - * not well formed. - */ - -htmlDocPtr -htmlSAXParseFile(const char *filename, const char *encoding, htmlSAXHandlerPtr sax, - void *userData) { - htmlDocPtr ret; - htmlParserCtxtPtr ctxt; - htmlSAXHandlerPtr oldsax = NULL; - - xmlInitParser(); - - ctxt = htmlCreateFileParserCtxt(filename, encoding); - if (ctxt == NULL) return(NULL); - if (sax != NULL) { - oldsax = ctxt->sax; - ctxt->sax = sax; - ctxt->userData = userData; - } - - htmlParseDocument(ctxt); - - ret = ctxt->myDoc; - if (sax != NULL) { - ctxt->sax = oldsax; - ctxt->userData = NULL; - } - htmlFreeParserCtxt(ctxt); - - return(ret); -} - -/** - * htmlParseFile: - * @filename: the filename - * @encoding: a free form C string describing the HTML document encoding, or NULL - * - * parse an HTML file and build a tree. Automatic support for ZLIB/Compress - * compressed document is provided by default if found at compile-time. - * - * Returns the resulting document tree - */ - -htmlDocPtr -htmlParseFile(const char *filename, const char *encoding) { - return(htmlSAXParseFile(filename, encoding, NULL, NULL)); -} - -/** - * htmlHandleOmittedElem: - * @val: int 0 or 1 - * - * Set and return the previous value for handling HTML omitted tags. - * - * Returns the last value for 0 for no handling, 1 for auto insertion. - */ - -int -htmlHandleOmittedElem(int val) { - int old = htmlOmittedDefaultValue; - - htmlOmittedDefaultValue = val; - return(old); -} - -/** - * htmlElementAllowedHere: - * @parent: HTML parent element - * @elt: HTML element - * - * Checks whether an HTML element may be a direct child of a parent element. - * Note - doesn't check for deprecated elements - * - * Returns 1 if allowed; 0 otherwise. - */ -int -htmlElementAllowedHere(const htmlElemDesc* parent, const xmlChar* elt) { - const char** p ; - - if ( ! elt || ! parent || ! parent->subelts ) - return 0 ; - - for ( p = parent->subelts; *p; ++p ) - if ( !xmlStrcmp((const xmlChar *)*p, elt) ) - return 1 ; - - return 0 ; -} -/** - * htmlElementStatusHere: - * @parent: HTML parent element - * @elt: HTML element - * - * Checks whether an HTML element may be a direct child of a parent element. - * and if so whether it is valid or deprecated. - * - * Returns one of HTML_VALID, HTML_DEPRECATED, HTML_INVALID - */ -htmlStatus -htmlElementStatusHere(const htmlElemDesc* parent, const htmlElemDesc* elt) { - if ( ! parent || ! elt ) - return HTML_INVALID ; - if ( ! htmlElementAllowedHere(parent, (const xmlChar*) elt->name ) ) - return HTML_INVALID ; - - return ( elt->dtd == 0 ) ? HTML_VALID : HTML_DEPRECATED ; -} -/** - * htmlAttrAllowed: - * @elt: HTML element - * @attr: HTML attribute - * @legacy: whether to allow deprecated attributes - * - * Checks whether an attribute is valid for an element - * Has full knowledge of Required and Deprecated attributes - * - * Returns one of HTML_REQUIRED, HTML_VALID, HTML_DEPRECATED, HTML_INVALID - */ -htmlStatus -htmlAttrAllowed(const htmlElemDesc* elt, const xmlChar* attr, int legacy) { - const char** p ; - - if ( !elt || ! attr ) - return HTML_INVALID ; - - if ( elt->attrs_req ) - for ( p = elt->attrs_req; *p; ++p) - if ( !xmlStrcmp((const xmlChar*)*p, attr) ) - return HTML_REQUIRED ; - - if ( elt->attrs_opt ) - for ( p = elt->attrs_opt; *p; ++p) - if ( !xmlStrcmp((const xmlChar*)*p, attr) ) - return HTML_VALID ; - - if ( legacy && elt->attrs_depr ) - for ( p = elt->attrs_depr; *p; ++p) - if ( !xmlStrcmp((const xmlChar*)*p, attr) ) - return HTML_DEPRECATED ; - - return HTML_INVALID ; -} -/** - * htmlNodeStatus: - * @node: an htmlNodePtr in a tree - * @legacy: whether to allow deprecated elements (YES is faster here - * for Element nodes) - * - * Checks whether the tree node is valid. Experimental (the author - * only uses the HTML enhancements in a SAX parser) - * - * Return: for Element nodes, a return from htmlElementAllowedHere (if - * legacy allowed) or htmlElementStatusHere (otherwise). - * for Attribute nodes, a return from htmlAttrAllowed - * for other nodes, HTML_NA (no checks performed) - */ -htmlStatus -htmlNodeStatus(const htmlNodePtr node, int legacy) { - if ( ! node ) - return HTML_INVALID ; - - switch ( node->type ) { - case XML_ELEMENT_NODE: - return legacy - ? ( htmlElementAllowedHere ( - htmlTagLookup(node->parent->name) , node->name - ) ? HTML_VALID : HTML_INVALID ) - : htmlElementStatusHere( - htmlTagLookup(node->parent->name) , - htmlTagLookup(node->name) ) - ; - case XML_ATTRIBUTE_NODE: - return htmlAttrAllowed( - htmlTagLookup(node->parent->name) , node->name, legacy) ; - default: return HTML_NA ; - } -} -/************************************************************************ - * * - * New set (2.6.0) of simpler and more flexible APIs * - * * - ************************************************************************/ -/** - * DICT_FREE: - * @str: a string - * - * Free a string if it is not owned by the "dict" dictionary in the - * current scope - */ -#define DICT_FREE(str) \ - if ((str) && ((!dict) || \ - (xmlDictOwns(dict, (const xmlChar *)(str)) == 0))) \ - xmlFree((char *)(str)); - -/** - * htmlCtxtReset: - * @ctxt: an HTML parser context - * - * Reset a parser context - */ -void -htmlCtxtReset(htmlParserCtxtPtr ctxt) -{ - xmlParserInputPtr input; - xmlDictPtr dict; - - if (ctxt == NULL) - return; - - xmlInitParser(); - dict = ctxt->dict; - - while ((input = inputPop(ctxt)) != NULL) { /* Non consuming */ - xmlFreeInputStream(input); - } - ctxt->inputNr = 0; - ctxt->input = NULL; - - ctxt->spaceNr = 0; - if (ctxt->spaceTab != NULL) { - ctxt->spaceTab[0] = -1; - ctxt->space = &ctxt->spaceTab[0]; - } else { - ctxt->space = NULL; - } - - - ctxt->nodeNr = 0; - ctxt->node = NULL; - - ctxt->nameNr = 0; - ctxt->name = NULL; - - DICT_FREE(ctxt->version); - ctxt->version = NULL; - DICT_FREE(ctxt->encoding); - ctxt->encoding = NULL; - DICT_FREE(ctxt->directory); - ctxt->directory = NULL; - DICT_FREE(ctxt->extSubURI); - ctxt->extSubURI = NULL; - DICT_FREE(ctxt->extSubSystem); - ctxt->extSubSystem = NULL; - if (ctxt->myDoc != NULL) - xmlFreeDoc(ctxt->myDoc); - ctxt->myDoc = NULL; - - ctxt->standalone = -1; - ctxt->hasExternalSubset = 0; - ctxt->hasPErefs = 0; - ctxt->html = 1; - ctxt->external = 0; - ctxt->instate = XML_PARSER_START; - ctxt->token = 0; - - ctxt->wellFormed = 1; - ctxt->nsWellFormed = 1; - ctxt->disableSAX = 0; - ctxt->valid = 1; - ctxt->vctxt.userData = ctxt; - ctxt->vctxt.error = xmlParserValidityError; - ctxt->vctxt.warning = xmlParserValidityWarning; - ctxt->record_info = 0; - ctxt->nbChars = 0; - ctxt->checkIndex = 0; - ctxt->inSubset = 0; - ctxt->errNo = XML_ERR_OK; - ctxt->depth = 0; - ctxt->charset = XML_CHAR_ENCODING_NONE; - ctxt->catalogs = NULL; - xmlInitNodeInfoSeq(&ctxt->node_seq); - - if (ctxt->attsDefault != NULL) { - xmlHashFree(ctxt->attsDefault, (xmlHashDeallocator) xmlFree); - ctxt->attsDefault = NULL; - } - if (ctxt->attsSpecial != NULL) { - xmlHashFree(ctxt->attsSpecial, NULL); - ctxt->attsSpecial = NULL; - } -} - -/** - * htmlCtxtUseOptions: - * @ctxt: an HTML parser context - * @options: a combination of htmlParserOption(s) - * - * Applies the options to the parser context - * - * Returns 0 in case of success, the set of unknown or unimplemented options - * in case of error. - */ -int -htmlCtxtUseOptions(htmlParserCtxtPtr ctxt, int options) -{ - if (ctxt == NULL) - return(-1); - - if (options & HTML_PARSE_NOWARNING) { - ctxt->sax->warning = NULL; - ctxt->vctxt.warning = NULL; - options -= XML_PARSE_NOWARNING; - ctxt->options |= XML_PARSE_NOWARNING; - } - if (options & HTML_PARSE_NOERROR) { - ctxt->sax->error = NULL; - ctxt->vctxt.error = NULL; - ctxt->sax->fatalError = NULL; - options -= XML_PARSE_NOERROR; - ctxt->options |= XML_PARSE_NOERROR; - } - if (options & HTML_PARSE_PEDANTIC) { - ctxt->pedantic = 1; - options -= XML_PARSE_PEDANTIC; - ctxt->options |= XML_PARSE_PEDANTIC; - } else - ctxt->pedantic = 0; - if (options & XML_PARSE_NOBLANKS) { - ctxt->keepBlanks = 0; - ctxt->sax->ignorableWhitespace = xmlSAX2IgnorableWhitespace; - options -= XML_PARSE_NOBLANKS; - ctxt->options |= XML_PARSE_NOBLANKS; - } else - ctxt->keepBlanks = 1; - if (options & HTML_PARSE_RECOVER) { - ctxt->recovery = 1; - options -= HTML_PARSE_RECOVER; - } else - ctxt->recovery = 0; - if (options & HTML_PARSE_COMPACT) { - ctxt->options |= HTML_PARSE_COMPACT; - options -= HTML_PARSE_COMPACT; - } - if (options & XML_PARSE_HUGE) { - ctxt->options |= XML_PARSE_HUGE; - options -= XML_PARSE_HUGE; - } - if (options & HTML_PARSE_NODEFDTD) { - ctxt->options |= HTML_PARSE_NODEFDTD; - options -= HTML_PARSE_NODEFDTD; - } - if (options & HTML_PARSE_IGNORE_ENC) { - ctxt->options |= HTML_PARSE_IGNORE_ENC; - options -= HTML_PARSE_IGNORE_ENC; - } - if (options & HTML_PARSE_NOIMPLIED) { - ctxt->options |= HTML_PARSE_NOIMPLIED; - options -= HTML_PARSE_NOIMPLIED; - } - ctxt->dictNames = 0; - return (options); -} - -/** - * htmlDoRead: - * @ctxt: an HTML parser context - * @URL: the base URL to use for the document - * @encoding: the document encoding, or NULL - * @options: a combination of htmlParserOption(s) - * @reuse: keep the context for reuse - * - * Common front-end for the htmlRead functions - * - * Returns the resulting document tree or NULL - */ -static htmlDocPtr -htmlDoRead(htmlParserCtxtPtr ctxt, const char *URL, const char *encoding, - int options, int reuse) -{ - htmlDocPtr ret; - - htmlCtxtUseOptions(ctxt, options); - ctxt->html = 1; - if (encoding != NULL) { - xmlCharEncodingHandlerPtr hdlr; - - hdlr = xmlFindCharEncodingHandler(encoding); - if (hdlr != NULL) { - xmlSwitchToEncoding(ctxt, hdlr); - if (ctxt->input->encoding != NULL) - xmlFree((xmlChar *) ctxt->input->encoding); - ctxt->input->encoding = xmlStrdup((xmlChar *)encoding); - } - } - if ((URL != NULL) && (ctxt->input != NULL) && - (ctxt->input->filename == NULL)) - ctxt->input->filename = (char *) xmlStrdup((const xmlChar *) URL); - htmlParseDocument(ctxt); - ret = ctxt->myDoc; - ctxt->myDoc = NULL; - if (!reuse) { - if ((ctxt->dictNames) && - (ret != NULL) && - (ret->dict == ctxt->dict)) - ctxt->dict = NULL; - xmlFreeParserCtxt(ctxt); - } - return (ret); -} - -/** - * htmlReadDoc: - * @cur: a pointer to a zero terminated string - * @URL: the base URL to use for the document - * @encoding: the document encoding, or NULL - * @options: a combination of htmlParserOption(s) - * - * parse an XML in-memory document and build a tree. - * - * Returns the resulting document tree - */ -htmlDocPtr -htmlReadDoc(const xmlChar * cur, const char *URL, const char *encoding, int options) -{ - htmlParserCtxtPtr ctxt; - - if (cur == NULL) - return (NULL); - - xmlInitParser(); - ctxt = htmlCreateDocParserCtxt(cur, NULL); - if (ctxt == NULL) - return (NULL); - return (htmlDoRead(ctxt, URL, encoding, options, 0)); -} - -/** - * htmlReadFile: - * @filename: a file or URL - * @encoding: the document encoding, or NULL - * @options: a combination of htmlParserOption(s) - * - * parse an XML file from the filesystem or the network. - * - * Returns the resulting document tree - */ -htmlDocPtr -htmlReadFile(const char *filename, const char *encoding, int options) -{ - htmlParserCtxtPtr ctxt; - - xmlInitParser(); - ctxt = htmlCreateFileParserCtxt(filename, encoding); - if (ctxt == NULL) - return (NULL); - return (htmlDoRead(ctxt, NULL, NULL, options, 0)); -} - -/** - * htmlReadMemory: - * @buffer: a pointer to a char array - * @size: the size of the array - * @URL: the base URL to use for the document - * @encoding: the document encoding, or NULL - * @options: a combination of htmlParserOption(s) - * - * parse an XML in-memory document and build a tree. - * - * Returns the resulting document tree - */ -htmlDocPtr -htmlReadMemory(const char *buffer, int size, const char *URL, const char *encoding, int options) -{ - htmlParserCtxtPtr ctxt; - - xmlInitParser(); - ctxt = xmlCreateMemoryParserCtxt(buffer, size); - if (ctxt == NULL) - return (NULL); - htmlDefaultSAXHandlerInit(); - if (ctxt->sax != NULL) - memcpy(ctxt->sax, &htmlDefaultSAXHandler, sizeof(xmlSAXHandlerV1)); - return (htmlDoRead(ctxt, URL, encoding, options, 0)); -} - -/** - * htmlReadFd: - * @fd: an open file descriptor - * @URL: the base URL to use for the document - * @encoding: the document encoding, or NULL - * @options: a combination of htmlParserOption(s) - * - * parse an XML from a file descriptor and build a tree. - * - * Returns the resulting document tree - */ -htmlDocPtr -htmlReadFd(int fd, const char *URL, const char *encoding, int options) -{ - htmlParserCtxtPtr ctxt; - xmlParserInputBufferPtr input; - xmlParserInputPtr stream; - - if (fd < 0) - return (NULL); - xmlInitParser(); - - xmlInitParser(); - input = xmlParserInputBufferCreateFd(fd, XML_CHAR_ENCODING_NONE); - if (input == NULL) - return (NULL); - ctxt = xmlNewParserCtxt(); - if (ctxt == NULL) { - xmlFreeParserInputBuffer(input); - return (NULL); - } - stream = xmlNewIOInputStream(ctxt, input, XML_CHAR_ENCODING_NONE); - if (stream == NULL) { - xmlFreeParserInputBuffer(input); - xmlFreeParserCtxt(ctxt); - return (NULL); - } - inputPush(ctxt, stream); - return (htmlDoRead(ctxt, URL, encoding, options, 0)); -} - -/** - * htmlReadIO: - * @ioread: an I/O read function - * @ioclose: an I/O close function - * @ioctx: an I/O handler - * @URL: the base URL to use for the document - * @encoding: the document encoding, or NULL - * @options: a combination of htmlParserOption(s) - * - * parse an HTML document from I/O functions and source and build a tree. - * - * Returns the resulting document tree - */ -htmlDocPtr -htmlReadIO(xmlInputReadCallback ioread, xmlInputCloseCallback ioclose, - void *ioctx, const char *URL, const char *encoding, int options) -{ - htmlParserCtxtPtr ctxt; - xmlParserInputBufferPtr input; - xmlParserInputPtr stream; - - if (ioread == NULL) - return (NULL); - xmlInitParser(); - - input = xmlParserInputBufferCreateIO(ioread, ioclose, ioctx, - XML_CHAR_ENCODING_NONE); - if (input == NULL) { - if (ioclose != NULL) - ioclose(ioctx); - return (NULL); - } - ctxt = htmlNewParserCtxt(); - if (ctxt == NULL) { - xmlFreeParserInputBuffer(input); - return (NULL); - } - stream = xmlNewIOInputStream(ctxt, input, XML_CHAR_ENCODING_NONE); - if (stream == NULL) { - xmlFreeParserInputBuffer(input); - xmlFreeParserCtxt(ctxt); - return (NULL); - } - inputPush(ctxt, stream); - return (htmlDoRead(ctxt, URL, encoding, options, 0)); -} - -/** - * htmlCtxtReadDoc: - * @ctxt: an HTML parser context - * @cur: a pointer to a zero terminated string - * @URL: the base URL to use for the document - * @encoding: the document encoding, or NULL - * @options: a combination of htmlParserOption(s) - * - * parse an XML in-memory document and build a tree. - * This reuses the existing @ctxt parser context - * - * Returns the resulting document tree - */ -htmlDocPtr -htmlCtxtReadDoc(htmlParserCtxtPtr ctxt, const xmlChar * cur, - const char *URL, const char *encoding, int options) -{ - xmlParserInputPtr stream; - - if (cur == NULL) - return (NULL); - if (ctxt == NULL) - return (NULL); - xmlInitParser(); - - htmlCtxtReset(ctxt); - - stream = xmlNewStringInputStream(ctxt, cur); - if (stream == NULL) { - return (NULL); - } - inputPush(ctxt, stream); - return (htmlDoRead(ctxt, URL, encoding, options, 1)); -} - -/** - * htmlCtxtReadFile: - * @ctxt: an HTML parser context - * @filename: a file or URL - * @encoding: the document encoding, or NULL - * @options: a combination of htmlParserOption(s) - * - * parse an XML file from the filesystem or the network. - * This reuses the existing @ctxt parser context - * - * Returns the resulting document tree - */ -htmlDocPtr -htmlCtxtReadFile(htmlParserCtxtPtr ctxt, const char *filename, - const char *encoding, int options) -{ - xmlParserInputPtr stream; - - if (filename == NULL) - return (NULL); - if (ctxt == NULL) - return (NULL); - xmlInitParser(); - - htmlCtxtReset(ctxt); - - stream = xmlLoadExternalEntity(filename, NULL, ctxt); - if (stream == NULL) { - return (NULL); - } - inputPush(ctxt, stream); - return (htmlDoRead(ctxt, NULL, encoding, options, 1)); -} - -/** - * htmlCtxtReadMemory: - * @ctxt: an HTML parser context - * @buffer: a pointer to a char array - * @size: the size of the array - * @URL: the base URL to use for the document - * @encoding: the document encoding, or NULL - * @options: a combination of htmlParserOption(s) - * - * parse an XML in-memory document and build a tree. - * This reuses the existing @ctxt parser context - * - * Returns the resulting document tree - */ -htmlDocPtr -htmlCtxtReadMemory(htmlParserCtxtPtr ctxt, const char *buffer, int size, - const char *URL, const char *encoding, int options) -{ - xmlParserInputBufferPtr input; - xmlParserInputPtr stream; - - if (ctxt == NULL) - return (NULL); - if (buffer == NULL) - return (NULL); - xmlInitParser(); - - htmlCtxtReset(ctxt); - - input = xmlParserInputBufferCreateMem(buffer, size, XML_CHAR_ENCODING_NONE); - if (input == NULL) { - return(NULL); - } - - stream = xmlNewIOInputStream(ctxt, input, XML_CHAR_ENCODING_NONE); - if (stream == NULL) { - xmlFreeParserInputBuffer(input); - return(NULL); - } - - inputPush(ctxt, stream); - return (htmlDoRead(ctxt, URL, encoding, options, 1)); -} - -/** - * htmlCtxtReadFd: - * @ctxt: an HTML parser context - * @fd: an open file descriptor - * @URL: the base URL to use for the document - * @encoding: the document encoding, or NULL - * @options: a combination of htmlParserOption(s) - * - * parse an XML from a file descriptor and build a tree. - * This reuses the existing @ctxt parser context - * - * Returns the resulting document tree - */ -htmlDocPtr -htmlCtxtReadFd(htmlParserCtxtPtr ctxt, int fd, - const char *URL, const char *encoding, int options) -{ - xmlParserInputBufferPtr input; - xmlParserInputPtr stream; - - if (fd < 0) - return (NULL); - if (ctxt == NULL) - return (NULL); - xmlInitParser(); - - htmlCtxtReset(ctxt); - - - input = xmlParserInputBufferCreateFd(fd, XML_CHAR_ENCODING_NONE); - if (input == NULL) - return (NULL); - stream = xmlNewIOInputStream(ctxt, input, XML_CHAR_ENCODING_NONE); - if (stream == NULL) { - xmlFreeParserInputBuffer(input); - return (NULL); - } - inputPush(ctxt, stream); - return (htmlDoRead(ctxt, URL, encoding, options, 1)); -} - -/** - * htmlCtxtReadIO: - * @ctxt: an HTML parser context - * @ioread: an I/O read function - * @ioclose: an I/O close function - * @ioctx: an I/O handler - * @URL: the base URL to use for the document - * @encoding: the document encoding, or NULL - * @options: a combination of htmlParserOption(s) - * - * parse an HTML document from I/O functions and source and build a tree. - * This reuses the existing @ctxt parser context - * - * Returns the resulting document tree - */ -htmlDocPtr -htmlCtxtReadIO(htmlParserCtxtPtr ctxt, xmlInputReadCallback ioread, - xmlInputCloseCallback ioclose, void *ioctx, - const char *URL, - const char *encoding, int options) -{ - xmlParserInputBufferPtr input; - xmlParserInputPtr stream; - - if (ioread == NULL) - return (NULL); - if (ctxt == NULL) - return (NULL); - xmlInitParser(); - - htmlCtxtReset(ctxt); - - input = xmlParserInputBufferCreateIO(ioread, ioclose, ioctx, - XML_CHAR_ENCODING_NONE); - if (input == NULL) { - if (ioclose != NULL) - ioclose(ioctx); - return (NULL); - } - stream = xmlNewIOInputStream(ctxt, input, XML_CHAR_ENCODING_NONE); - if (stream == NULL) { - xmlFreeParserInputBuffer(input); - return (NULL); - } - inputPush(ctxt, stream); - return (htmlDoRead(ctxt, URL, encoding, options, 1)); -} - -#define bottom_HTMLparser -#include "elfgcchack.h" -#endif /* LIBXML_HTML_ENABLED */ |